Showing posts with label extreme weather. Show all posts
Showing posts with label extreme weather. Show all posts

Sunday, November 9, 2014

Arctic snap will ice Northern states, whipped down by 'bomb cyclone'

(CNN)The ice man cometh. And does so early this year, after a former Pacific typhoon flew up toward the Arctic and rammed the jet stream.

The stream has whipped south, dragging down frigid air from Canada over the northern Plains and Mountain States and the Upper Midwest, according to the National Weather Service.

It is already plunging temperatures below freezing there and will hammer them into the teens and single digits in many places by midweek, even lower in others.

Great Falls, Montana, will shiver at 9 below zero on Tuesday night.

It’s the coldest weather of the season, the weather service said.

Minneapolis could soon get a foot of snow, the service said, with the Minnesota city experiencing below-freezing temperatures that could last for eight days.

Let it snow

The snap is forecast to lay down the first broad layer of wintry snow, flurries, sleet or ice — long before winter starts — from Montana down to Nebraska and over to Wisconsin.

It will accumulate in inches in the northern Rockies, northern Plains and Great Lakes.

People farther south will also shiver. "Much of the nation east of the Rockies is expected to see a major pattern change by the beginning of the work week," the weather service said.

The western Dakotas are also forecast to get significant snow.

Lows will drop to freezing in Kansas City late Monday, then into the 20s a night later. The snap will stop short, leaving much of the Deep South and Southwest in a fall-like warm zone.

Rain is expected to hit Chicago and Milwaukee on Monday and Tuesday, with a few snowflakes mixed in, according to the service on Sunday afternoon.

Courtesy of Nuri

Residents in the northern United States can thank a whopping tropical cyclone in the Pacific Ocean for the wintry blast.

The remnants of super Typhoon Nuri rolled up north over Alaska’s Aleutian Islands on Friday, kicking off the ripple of Arctic air in the other direction.

Nuri is now the strongest known Northern Pacific cyclone on record, according to the National Weather Service Ocean Prediction Center.

Its remnants plowed into cold air adding violent energy as it went north, similar to what Superstorm Sandy did in the Atlantic two years ago. That earned it the weather moniker "bomb cyclone. More

 

 

Sunday, August 24, 2014

450,000 people affected by flooding in E. China

450,000 people affected by flooding in E. China

Published on Aug 22, 2014 • Heavy rainfall hitting east China's Zhejiang Province for over a week has triggered floods and affected 450 thousand people. Hundreds of homes are destroyed and nearly 40 thousand people have been evacuated.

Sunday, August 17, 2014

Wednesday's rainfall a 'once in a 200-year' weather event, climatologists say

Several weather records were broken Wednesday after 13.27 inches of rain fell at Islip Town's Long Island MacArthur Airport in what the Northeast Regional Climate Center calls a 24-hour 200-year storm event.

That means that "rainfall of this magnitude is only expected to occur once in a 200-year period," according to the center's website.

At play was a complex weather system that the National Weather Service had been monitoring for days, warning of the threat of flash flooding, in which an upper level disturbance, a low pressure area at the surface and very moist environment all combined over the area, said Tim Morrin, weather service meteorologist in Upton.

The "bull's-eye" of the heaviest rainfall that deluged an area of western Suffolk was right near MacArthur Airport, he said.

"A very small micro-scale event took place" in that area, one that is yet to be explained, he said, but that will likely be researched extensively, with follow-up papers written. Such a phenomenon is "impossible to forecast," he said, as "there's not enough skill in the computer models to pinpoint that kind of extreme" on such a small scale.

As for hourly rainfall, 5.34 inches fell from 5 to 6 a.m. Wednesday at the airport in Ronkonkoma, followed by another 4.37 inches from 6 to 7 a.m., according to the Climate Center. They may have come back-to-back, but each is considered a 500-year event, said Jessica Spaccio, a climatologist with the center, which is at Cornell University.

Records were also broken, and, "when we break a state record, that's pretty exciting," Spaccio said

According to a preliminary report from the weather service, the previous New York State record for precipitation in a 24-hour period was broken. That was set Aug. 27 to 28, 2011, in Tannersville when 11.6 inches fell during what the service referred to as Hurricane/Tropical Storm Irene.

With half the month still to go, Wednesday's rainfall also resulted in a record for the month of August, previously 13.78 inches set in 1990, the weather service said. The airport's August rainfall now stands at 13.88 inches, said the weather service, which has maintained official records for the airport for the past 30 years.

While Long Island has been considered "abnormally dry" this year by the U.S. Drought Monitor, the 13.27 inches at the airport in just about one day exceeded normal rainfall for June, July and August combined -- 11.68 inches -- based on precipitation records from 1981 to 2010, according to the Climate Center.

Wednesday's rainfall also broke the airport's all-time daily rainfall record, which was 6.74 inches set Aug. 24, 1990, Spaccio said.

And as for the record rainfall for Aug. 13 -- beating that was a piece of cake, with the previous record for that day 0.91 inches, set in 2013, the weather service said.

As for hourly rainfall amounts -- top honors now go to Wednesday from 5 to 6 a.m. when 5.34 inches fell at the airport, followed by 4.37 inches the very next hour, Spaccio said. The highest previous amount was 2.64 inches, which fell in one hour on July 18, 2007. That's based on data maintained since July 1996, she said. More

 

Monday, June 2, 2014

Iran sandstorm kills at least four in Tehran

A powerful sandstorm has hit Iran's capital, Tehran, killing at least four people and injuring about 30.

At its peak, the storm brought winds of up to 110km/hour (70mph), knocking over trees and damaging windows.

Eyewitnesses told the BBC the sky turned orange from thick dust brought on by the storm. Such strong storms are unusual in Tehran, correspondents say.

The storm caused power cuts and traffic accidents from poor visibility as dust and sand engulfed parts of the capital.

Some domestic flights to central Iran have been diverted, AP news agency reports.

One shopkeeper in Tehran, identified only as Nouri, told AP news agency: "It was a horrifying storm and suddenly everywhere went dark.

"I closed my store's shutters to prevent damage. [A] big tree broke and knocked in the windows, shattering them."

The total number of deaths is unclear. Iranian state television said five were killed, while state-run Irna news agency said four died.

Some of the deaths were reportedly caused by falling trees. More

 

Monday, May 26, 2014

Mega dry spell Spain's worst in 150 years

Parts of Spain are currently suffering through their most intense dry spell in a century and a half with Valencia and Alicante among the worst affected regions. Future predictions are not too rosy either, meteorologists warn.

The last eight months have been brutally dry for large swathes of southern and eastern Spain.

While huge storms buffeted Spain's Atlantic coasts and the Canary Islands during the winter and spring, Valencia and Alicante, as well as areas including Murcia, parts of Albacete province, and the Andalusian provinces of Jaén, Almería, Cadíz and Málaga have all been starved of rain.

In the last 150 years, there has never been "such a long and intense drought", according to the country's meteorological agency Aemet.

Indeed there are parts of the country where during "the second worst period of drought on record there was twice as much rain as now", meteorologist José Antonio Maldonado told Spanish free daily 20 minutos.

Rainfall levels in many areas have been less than half of those seen from 1971 to 2000, while some places have seen less than 25 percent of those levels.

Most dams are still at somewhere between 74 percent and 90 percent of capacity thanks to rains from earlier years, but some farmers are already struggling to water their crops, or have gone out of business.

Spain is also facing an uncertain water future: a 2013 study by the Spanish National Research Council (CSIC) looking at the period from 1945 to 2005 found the country's droughts were becoming more intense and more regular. More

     

     

    Friday, March 28, 2014

    Nobel Laureates Speak Out

    On Wednesday, 17 Nobel laureates who gathered in Stockholm have published a remarkable memorandum, asking for “fundamental transformation and innovation in all spheres and at all scales in order to stop and reverse global environmental change”. The Stockholm Memorandum concludes that we have entered a new geological era: the Anthropocene, where humanity has become the main driver of global change. The document states:

    Mario Molina signs the Stockholm Memorandum

    Science makes clear that we are transgressing planetary boundaries that have kept civilization safe for the past 10,000 years. [...] We can no longer exclude the possibility that our collective actions will trigger tipping points, risking abrupt and irreversible consequences for human communities and ecological systems. We cannot continue on our current path. The time for procrastination is over. We cannot afford the luxury of denial.

    The memorandum results from a 3-day symposium (attended also by the king of Sweden) on the intertwined problems of poverty, development, ecosystem deterioration and the climate crisis. In the memorandum, the Nobel laureates call for immediate emergency measures as well as long-term structural solutions, and they give specific recommendations in eight key priority areas. For example in climate policy, they recommend to:

    Keep global warming below 2ºC, implying a peak in global CO2 emissions no later than 2015 and recognise that even a warming of 2ºC carries a very high risk of serious impacts and the need for major adaptation efforts.

    The memorandum was handed over to the members of the UN high-level panel on global sustainability, who traveled to Stockholm in order to discuss it with the Nobel laureates and experts at the symposium.

    P.S. As a little reminder of the ongoing work of the merchants of doubt, a small band of five or six “climate sceptic” protesters were gathered outside the symposium, some of whom flown in from Berlin. Their pamphlet identified them as part of the longstanding anti-climate-science campaign of US billionaire Lyndon Larouche and claimed that climate change is “a hoax” and an “insane theory”, the global temperature measurements are “mere lies”, the Nobel laureates meeting “a conspiracy” and the Stockholm Memorandum a “Fascist Manifesto”. I approached one of the protesters who carried a banner “against Green fascism” and asked him whether he seriously believes what his pamphlet says, namely that our meeting is a “symposium for global genocide”. He nodded emphatically and replied: “Yes, of course!” More

    Stockholm Memorandum signing ceremony


    Signing and handing over of the Stockholm Memorandum to the UN High Level Panel on Global Sustainability.

    Sunday, March 16, 2014

    A Fork in the Road by Dr. James Hansen

    We stand at a fork in the road. Conventional oil and gas supplies are limited. We can move down the path of dirtier more carbon-intensive unconventional fossil-fuels, digging up the dirtiest tar sands and tar shales, hydrofracking for gas, continued mountain-top removal and mechanized destructive long-wall coal mining. Or we can choose the alternative path of clean energies and energy efficiency.

    The climate science is crystal clear. We cannot go down the path of the dirty fuels without guaranteeing that the climate system passes tipping points, leaving our children and grandchildren a situation out of their control, a situation of our making. Unstable ice sheets will lead to continually rising seas and devastation of coastal cities worldwide. A large fraction of Earth's species will be driven to extinction by the combination of shifting climate zones and other stresses. Summer heat waves, scorching droughts, and intense wildfires will become more frequent and extreme. At other times and places, the warmer water bodies and increased evaporation will power stronger storms, heavier rains, greater floods.

    The economics is crystal clear. We are all better off if fossil fuels are made to pay their honest costs to society. We must collect a gradually rising fee from fossil fuel companies at the source, the domestic mine or port of entry, distributing the funds to the public on a per capita basis. This approach will provide the business community and entrepreneurs the incentives to develop clean energy and energy-efficient products, and the public will have the resources to make changes.

    This approach is transparent, built on conservative principles. Not one dime to the government.

    The alternative is to slake fossil fuel addiction, forcing the public to continue to subsidize fossil fuels. And hammer the public with more pollution. The public must pay the medical costs for all pollution effects. The public will pay costs caused by climate change. Fossil fuel moguls get richer, we get poorer. Our children are screwed. Our well-oiled coal-fired government pretends to not understand.

    Joe Nocera is polite, but he does not understand basic economics. If a rising price is placed on carbon, the tar sands will be left in the ground where they belong. And the remarkable life and landscape of the original North American people will be preserved.

    Joe Nocera quoted a private comment from a note explaining that I could not promise I would be back in New York to meet him. But he did not mention the contents of the e-mail that I sent him with information about the subject we were to discuss. The entire e-mail is copied below.

    Jim Hansen


    _______

    Joe,

    Here are some relevant words from the draft of a paper that I am working on:

    Transition to a post-fossil fuel world of clean energies will not occur as long as fossil fuels are the cheapest energy. Fossil fuels are cheap only because they are subsidized and do not pay their costs to society. Air and water pollution from fossil fuel extraction and use have high costs in human health, food production, and natural ecosystems, with costs borne by the public. Costs of climate change and ocean acidification also are borne by the public, especially young people and future generations.

    Thus the essential underlying policy, albeit not sufficient, is for emissions of CO2 to come with a price that allows these costs to be internalized within the economics of energy use. Because so much energy is used through expensive capital stock, the price should rise in a predictable way to enable people and businesses to efficiently adjust lifestyles and investments to minimize costs.

    An economic analysis indicates that a tax beginning at $15/tCO2 and rising $10/tCO2 each year would reduce emissions in the U.S. by 30% within 10 years. Such a reduction is more than 10 times as great as the carbon content of tar sands oil carried by the proposed Keystone XL pipeline (830,000 barrels/day). Reduced oil demand would be nearly six times the pipeline capacity, thus rendering it superfluous

    A rising carbon price is the sine qua non for fossil fuel phase out, but it is not sufficient. Investment is needed in energy RD&D (research, development and demonstration) in new technologies such as low-loss smart electric grids, electrical vehicles interacting effectively with the power grid, and energy storage for intermittent renewable energy. Nuclear power has made major contributions to climate change mitigation and mortality prevention, and advanced nuclear reactor designs can address safety, nuclear waste, and weapons proliferation issues that have limited prior use of nuclear power, but governments need to provide a regulatory environment that supports timely construction of approved designs to limit costs. etc.

    Jim Hansen

     

    Friday, March 14, 2014

    Pakistan’s Impending Famine

    Thar, Sindh, Pakistan

    It’s hard to catch a break in Pakistan.

    Extremist violence is widespread, earthquakes and flooding are routine, and polio remains endemic. No nation has a higher infant mortality rate, and only a few have more cases of tuberculosis. Nearly half the country’s 180 million people lack access to safe water, and many Pakistanis have experienced power outages of up to 20 hours per day. Given such stresses, it’s not surprising that up to 16 percent of the country suffers from mental illness.

    And now comes the latest scourge: Famine.

    In recent days, media reports have revealed that dozens of people—many of them children—have died from malnutrition over the last three months in the bone-dry desert region of Thar, in the southern province of Sindh. And yet things could soon get much worse. A recent UNICEF report, noting that drought has “devastated” crops and livestock and that “hundreds of thousands” of people have fled, warns of a possible “massive humanitarian crisis” in Thar. Ominously, almost 3 million people “risk starvation” across Pakistan.

    Many Pakistani press accounts—and numerous Pakistani politicians—depict the Thar tragedy as a catastrophic case of negligence by Sindh’s provincial government. They fault local officials for taking too long to get food assistance to those in need late last year when drought conditions first began to set in. And they single out authorities for failing to transfer sick children in remote areas to better hospitals.

    Yet the Thar famine also reflects another type of failure: that of democracy.

    In recent years, Pakistan—a country ruled by the military for about half its existence— has made remarkable democratic progress. With successive free elections, civilian rule is firmly in place. Pakistan’s mighty military has mellowed. Constitutional amendments have decentralized power. The Supreme Court is increasingly targeting powerful people and institutions. And private media outlets have rapidly proliferated.

    However, there are limits to this progress.

    The most commonly cited obstacles to deeper democratization are the military, which continues to exert heavy influence over politics; a lack of pluralism and tolerance, which contributes to the deplorable plight of religious minorities; and the country’s abysmal law enforcement, which enables militants to operate with impunity.

    Yet the tragedy in Thar underscores a more insidious and underreported threat to democracy: Astounding manifestations of land inequality.

    In Sindh, a paltry 0.05 percent of households hold more than five acres of land (the figure is similar in Punjab, Pakistan’s most populous province). In the nation as a whole, 2 percent of households own nearly 50 percent of land, while 5 percent of agricultural households own nearly two thirds of Pakistan’s farmland.

    This means that the majority of the population holds little to no land. Without land, it’s difficult to access food and water (and it’s also difficult to earn a livelihood; landless Pakistanis make up 70 percent of the country’s rural poor). Most Pakistanis must depend on a tiny, wealthy landowning minority for access to these natural resources.

    These resources, and the land that holds them, are becoming increasingly precious. According to one alarming estimate, Pakistan loses three acres of good agricultural land every 20 minutes. In Thar, land and natural resources are further imperiled by Islamabad’s plan to tap into the region’s vast coalfields to ease the country’s severe energy crisis. Officials insist there will be no deleterious impacts on local communities, but there’s good reason to fear that such exploitation could cause environmental distress and displacement, and deprive an impoverished region of a critical natural resource. These are very real problems in equally dry and poor Baluchistan, a province long subjected to intensive natural resource extractions by Islamabad and large corporations. Such conditions have helped fuel a long-running separatist insurgency.

    In effect, millions of Pakistanis have neither the land to grow food nor the money to buy it. And yet little is done to help them. Landed rural elites—the essence of vested interests in Pakistan—seemingly spend more time blocking critical agricultural reforms (including those that would increase the tax base) than addressing the plight of the landless. They have also been accused of siphoning off irrigation water flows from poor farmers, and of diverting floodwaters away from their crops and into more vulnerable communities. What’s particularly troubling about all this is that these wealthy landowners are often politically connected, or politicians themselves (Sindh’s landed rural elite is a strong base of support for the Pakistan People’s Party, or PPP, which runs the Sindh government).

    Consider the strikingly blasé reactions of local officials to current conditions in Thar. Apparently unmoved by (or oblivious to) UNICEF’s warnings of a massive crisis, PPP leaders have described events of recent days as “normal” and “nothing new.” Sindh’s advocate general, speaking Monday at a hearing convened by Pakistan’s Supreme Court, expressed regret, but also appeared to lay the blame on parents for not taking their kids to the hospital.

    Perhaps most egregious of all, after federal officials toured affected areas this week, Sindh’s government hosted a lavish buffet lunch featuring fried fish and biryani —“an act of such monumental stupidity and insensitivity,” according to one Pakistani editorial, “that it beggars belief.”

    Call this heartlessness, or call it apathy. Many Pakistanis call it feudalism—the embodiment of a system in which imperious landed elites lord over their hapless subjects. One thing you can’t call it, however, is democracy. Yes, it’s an imperfect institution—but surely it doesn’t sanction such vast disparities in land ownership, or the type of leadership that seems unmoved by the humanitarian crises spawned by those disparities.

    The takeaway here is that in Thar, people are dying because of deeply entrenched inequalities that make them profoundly food insecure and hyper-vulnerable to calamities—like drought and disease—that more fortunate people elsewhere can withstand and survive.

    Ultimately, the dead and dying of Thar—just like slaughtered Shia Muslims, the military’s large political footprint, and state sponsorship of militancy—underscore the fact that despite considerable achievements in recent years, democracy in Pakistan remains a work in progress.

    Michael Kugelman is the senior program associate for South Asia at the Woodrow Wilson International Center for Scholars in Washington, DC. He can be reached at michael.kugelman[@]wilsoncenter.org or on Twitter @michaelkugelman.

     

    California Exceptional Drought Worsens

    I keep hearing from some people how the storms at the end of February and the start of March had to have helped the California drought.

    That all the rain that fell in the lowlands and snow in the Sierra had to have had an impact. Right after the storms in my , I was already pointing out that this was not the case. One set of storms does not end a three-year drought. In that post I stated, "The drought in California did not just develop this year, or in the last 12 months, but over the last three years. It is unrealistic to think one series of storms is going to have a huge impact on the long-term drought..."

    Now, two weeks later, here is more evidence that the short period of rain and mountain snow had little impact.

    Below is a comparison of the Drought Monitor maps for California from Feb. 18 (before the storms) and the one released today.

    Over this span of time the area coverage of D4 drought conditions (exceptional) has actually increased substantially from 14.62 percent to 22.37 percent of the area, covering the rich farming area of the Central Coast to the San Joaquin Valley. The D3-4 area (extreme drought) did come down a little from 68.30 to 65.89, mostly in southwestern California.

    I have already shown that many reservoirs in central and northern California are still at near-record low levels. The graph below shows the daily Sierra snowpack this year, compared to the previous two years and to normal.

    With no substantial rain and snow expected for at least another week, and a round of near-record temperatures likely in the Central Valley and southwestern California coming for this weekend, all of these stats are not going to get any better. In fact, there is a good chance of below- to well below-normal precipitation over the next couple of weeks.

     

     

    Tuesday, March 11, 2014

    New NASA Study Warns Of Climate Change’s Pace

    CAPE CANAVERAL (CBSMiami) – NASA jumped back into the discussion of global climate change Tuesday with a new study that showed Earth’s climate will experience roughly 20 percent more warming than estimates originally stated, despite a recent slowdown.

    NASA said the new predictions were based on more detailed calculations of the sensitivity of Earth’s climate to factors like greenhouse gas emissions, which help warm the planet.

    Global temperatures have risen at a rate of 0.22 degrees Fahrenheit per decade since 1951. But according to NASA, since 1998 the rate slowed to 0.09 per decade, despite an increase in some greenhouse gases like carbon dioxide.

    Some studies have since suggested greenhouse gases may not impact Earth as much as previously thought. The Intergovernmental Panel on Climate Change agreed and slightly lowered the range of Earth’s potential warming.

    The new research focused on what’s called Earth’s “transient climate response.” This measurement looks at how temperatures will change as carbon dioxide increases until the total amount of carbon dioxide has doubled.

    Previous estimates put the transient climate response at anywhere from 1.8 degrees to 2.52 degrees Fahrenheit. According to NASA’s new study, the transient climate response is approximately 3.06 degrees and not likely to fall below 2.34 degrees Fahrenheit.

    The study focused on looking at how aerosols from natural sources like volcanoes and wildfire combined with manufacturing activities, cars, and energy production interacted. NASA said depending on the make-up of the aerosols, some cause warming and some cause cooling.

    According to the study, the Northern Hemisphere will likely see more of an impact from aerosols as most man-made aerosols are released from industrial zones north of the equator and most of Earth’s landmasses are in the Northern Hemisphere.

    “I kept thinking, we know the Northern Hemisphere has a disproportionate effect, and some pollutants are unevenly distributed,” the study’s author, climatologist Drew Shindell said. “But we don’t take that into account. I wanted to quantify how much the location mattered.”

    Shindell said that based on his calculations, industrialized countries must reduce greenhouse gas emissions at the higher end of proposed restrictions to avoid the most damaging consequences of climate change. More

     

    Sunday, March 9, 2014

    America Could Soon Face More Days of “Extreme Rainfall”

    Squelch, squelch, squelch – that could be the sound of future America, if predictions about how climate change will ramp up "extreme rainfall" prove accurate.

    Say the world's nations do little to reduce the amount of greenhouse gases pouring into the atmosphere. By the years 2041 to 2070, the warmer climate could bring torrential downpours to vast parts of the United States, as shown in this model from NOAA. Dark-blue splashes depict areas that might see as many as two or more days a year of extreme rain, defined as "rainfall totals in excess of the historic 98th percentile." (This is against a 1971 to 2000 baseline.) Cities that should maybe consider wooing the umbrella-manufacturing industry include Seattle, Washington; Portland, Oregon; Boise, Idaho; Richmond, Virginia; and much of the Northeast.

    The climate folks at NOAA add:

    Climate models project increasing days of extreme rainfall in the Northwest, Midwest, and parts of the Northeast, including some populated coastal areas that are already challenged by inundation and sea level rise. Several major watersheds are predicted to have more days of extreme rainfall by the middle of the century, including the Pacific Northwest, the Ohio River Basin, the Great Lakes, and parts of the Great River and Missouri River Basin. Meanwhile, the Southwest and some other areas frequented by drought are expected to see little difference in the number of extreme rainfall days.

    The model is based on the findings of a 2009 national climate assessment, which include the moist bulletin that over the past 50 years precipitation already increased by 5 percent. The bulk of rain falling during especially heavy storms, meanwhile, is thought to have ratcheted up by 20 percent on average in the last century. Scientists generally believe the warming climate will make the northern parts of the country wetter, while the southern and western zones will progressively dry out.

    Before anybody interjects, "Can you really sell that while also selling more intense and frequent drought?" – as one Twitter guy just did – NOAA has provided an answer. The agency tweets: "Climate models show that in a warmer world, precip tends to be concentrated into heavier events w/ longer dry periods in btwn." More

     

    Friday, March 7, 2014

    We have entered an abrupt climate change phase

    The familiar global weather patterns that we, our parents, and our grandparents (and most of our distant ancestors, at least as far back as the last ice age remnants) have always experienced are no more. We have entered an abrupt climate change phase in which an energized water primed atmosphere and disrupted circulation patterns give rise to unfamiliar, massive and powerfully destructive storms, torrential rains, widespread heat waves and droughts, and less commonly but occasionally widespread cold spells.

    Why is this happening now? Sophisticated Earth System computer Models (ESMs), summaries of state-of-the-art peer reviewed climate science (Intergovernmental Panel on Climate Change IPCC), and mainstream science have generally put the climate change threat out to the latter part of the century. Global data from all parts of the world, but most noticeably the Arctic shows that reality is quite different from these models and mainstream thinking.

    Just by looking out the window much of humanity now senses that something is very different, and uncomfortably wrong in their particular region.

    Depending on location, vegetation is drying out and burning, or being toppled by very high wind events, or oceans are invading upon coastlines, or rivers are overrunning banks or drying up or both, while rainfall deluges are inundating other regions. In fact some regions are vacillating between massive floods and massive droughts, or record high temperatures and record low temperatures, even on a weekly basis.

    As crazy as things are now, clearly they are not bad enough to wake up the general population enough to vote down denier politicians and demand extensive governmental action on the problem. Not to worry, that action is a sure bet in the near future, the only question is will it happen next year, or in 3 years?

    In the meantime, many of us are doing as much as we can to educate people on the dangers we face and speed up the understanding of climate reality process. As much as we do, ultimately it is the hammer of extreme weather, causing, for example global crop failures or taking out a few more cities in rich countries that will take the final credit for an abrupt tipping point in human behavior.

    The key to the disruption in the climate system is the Arctic

    Human emissions have inexorably increased levels of carbon dioxide and methane (Greenhouse gases GHGs) in the atmosphere sufficiently to cause an incremental overall increase of global mean surface temperature by 0.8 degrees C over the last century. Over the last 3 decades, the GHGs have caused sufficient warming in the Arctic to melt enough land-covered snow and ocean covered ice such that the highly reflective surfaces have been replaced by dark underlying land and ocean greatly increasing sunlight absorption causing Arctic temperature amplification of 3x to 5x and higher.

    This has melted permafrost on the land and on the shallow continental shelves and has increased Arctic methane emissions, which on a molecule-to-molecule basis cause warming >150x compared to carbon dioxide on a short timescale. Arctic temperature amplification has reduced the equator-to-Arctic temperature difference, which is responsible for setting up global circulation patterns on the rotating Earth. Thus, the high speed jet stream winds which circumvent the globe become slower, and wavier, and weather patterns change.

    Extreme weather events become stronger, more frequent, of longer duration, and act on new regions. In effect, the climate background has changed, so the statistics of all weather events changes. When the ocean tide comes in all boats rise, when the climate system changes all weather events change.

    So how does the North American freeze of early January, 2014 and the upcoming late January, 2014 freeze fit into this picture? In our familiar climate, the polar jet stream flowed mostly west to east (with small north-south deviations or waves, with typically 4 to 7 crests and troughs around the globe) separating cold dry Arctic air from lower latitude warmer moist air. The latitude of the jet moves southward in our winter and northward in our summer.

    In our present climate the jet stream waviness has greatly increased and eastward average speed has decreased. Not only that, but in early January there were only two troughs (over North America and central Asia) and two crests (over Europe and the Pacific up through Alaska and the Bering Strait).

    The troughs had temperatures 20 degrees C cooler than normal, while the crests had temperatures 20 degrees C warmer than normal. These large waves and slowing of the jet stream is directly responsible for the changes we have been experiencing in weather extremes. Cold or warm, depending on your location. More

     

    Wednesday, March 5, 2014

    Extreme weather is 'silver lining' for climate action: Christiana Figueres

    Devastating extreme weather including recent flooding in England, Australia's hottest year on record and the US being hit by a polar vortex have a "silver lining" of boosting climate change to the highest level of politics and reminding politicians that climate change is not a partisan issue, according to the UN's climate chief. Christiana Figueres said that it was amoral for people to look at climate change from a politically partisan perspective, because of its impact on future generations.

    The "very strange" weather experienced across the world over the last two years was a sign "we are [already] experiencing climate change," the executive secretary of the UN climate secretariat told the Guardian.

    The flooding of thousands of homes in England because of the wettest winter on record has brought climate change to the forefront of political debate in the UK. The pprime minister, David Cameron, when challenged by Labour leader, Ed Miliband, on his views on man-made climate change and having climate change sceptics in his cabinet, said last week: "I believe man-made climate change is one of the most serious threats that this country and this world faces."

    Climate change was barely mentioned at all in the 2012 US election battle until superstorm Sandy struck New York, prompting the city's then mayor, Michael Bloomberg, to endorse Barack Obama's candidacy because he would "lead on climate change."

    Figueres said: "There's no doubt that these events, that I call experiential evidence of climate change, does raise the issue to the highest political levels. It's unfortunate that we have to have these weather events, but there is a silver lining if you wish, that they remind us is solving climate change, addressing climate change in a timely way, is not a partisan issue."

    She added: "We are reminded that climate change events are for everyone, they're affecting everyone, they have much, much longer effects than a political cycle. Frankly, they're intergenerational, so morally we cannot afford to look at climate change from a partisan perspective."

    Figueres said that examples of recent extreme weather around the world were a sign climate change was here now. "If you take them individually you can say maybe it's a fluke. The problem is it's not a fluke and you can't take them individually. What it's doing is giving us a pattern of abnormality that's becoming the norm. These very strange extreme weather events are going to continue in their frequency and their severity … It's not that climate change is going to be here in the future, we are experiencing climate change."

    Figueres was speaking in London before meeting businesses including Unilever, Lafarge and Royal Dutch Shell to urge them to put pressure on governments to take action on climate change, ahead of renewed international negotiations in Bonn next week to flesh out details of a draft climate treaty to be laid out in Lima this year and agreed in Paris at the end of 2015.

    "2014 is a crucial year because of the timing of next year, [in 2015] there will be very little time work on the actual agreement. We have to frontload the work," she said.

    Peru's foreign minister told the Guardian in January that the Lima meeting in December must produce a first draft of a deal to cut carbon emissions, which will be the first of its kind after efforts to get legally binding agreement for cuts from most of the world's countries failed at a blockbuster meeting in Copenhagen in 2009.

    Asked if a bad deal was better than no deal next year, she said: "Paris has to reach a meaningful agreement because, frankly, we are running out of time."

    But she dismissed parallels with the run-up to the Copenhagen summit, saying the frequency of extreme weather events, lower renewable energy costs and progress on climate legislation at a national level meant it was different this time round.

    "I hope that we don't need too many more Sandys or Haiyans or fires in Australia or floods in the UK to wake us up. My sense is there is already much momentum.We have 66 governments that have climate legislation, we have a total of 500 laws around the world on climate, whereas before Copenhagen we only had 47."

    But the grouping of the world's 47 "least developed" countries said this week that they would want far more money to adapt their economies to climate change than the $100bn a year that been so far proposed by rich countries.

    "We will want more than the $100bn to agree to a new Paris protocol," said Quamrul Choudhury, a lead negotiator for the group which includes many African and Asian countries. "On top of that we will want a legal mechanism to compensate for 'loss and damage' [compensation for extreme climate change events]. There should definitely be some space in the [final] treaty for that," he said in London.

    He called on rich countries to compromise. "The battle lines are drawn. Everyone wants to defend their country and nobody will give an inch, but everyone has to make some sacrifice or we won't have a deal. We need high-level political commitment to raise ambition."

    Choudhury, who is also Bangladesh's climate envoy to the United Nations, met British climate negotiators ahead of the Bonn talks. "I am optimistic that the world can avoid another diplomatic disaster like Copenhagen in 2009. There have been major changes since then. In 2008-09 we knew it would be very expensive to reduce emissions. Now we know it does not cost very much. It's not expensive, not a Herculean task. Countries like the UK know they can reduce emissions by 65% without it costing very much at all.

    "But even if we have an ambitious mitigation target [to cut emissions] adaptation must be the cornerstone of a new treaty. This is not a zero-sum game. If we treat it like that there will be no Paris protocol," he said.

    Figueres later agreed that the $100m proposed in 2009 as compensation for poor countries would not be enough for them to build defences and adapt their economies. "It was a figure plucked from a hat … $100bn is not enough [to meet] the mitigation and not at all for the adaptation costs. The International Energy Agency has suggested it may cost $1 trillion over 25 years just for adaptation. $100bn is a freckle on the map of what needs to be invested."

    A major UN climate science panel report to be published at the end of this month will spell out the impacts of climate change on humanity and the natural world.Leaked versions of the report say agricultural production will decline by up to 2% every decade for the rest of the 21st century. More