CU-Boulder study shows global glaciers, ice caps, shedding billions of tons of mass annually

Earth's glaciers and ice caps outside of the regions of Greenland and Antarctica are shedding roughly 150 billion tons of ice annually, according to a new study led by the University of Colorado Boulder.

The research effort is the first comprehensive satellite study of the contribution of the world's melting glaciers and ice caps to global sea level rise and indicates they are adding roughly 0.4 millimeters annually, said CU-Boulder physics Professor John Wahr, who helped lead the study. The measurements are important because the melting of the world's glaciers and ice caps, along with Greenland and Antarctica, pose the greatest threat to sea level increases in the future, Wahr said.

The researchers used satellite measurements taken with the Gravity Recovery and Climate Experiment, or GRACE, a joint effort of NASA and Germany, to calculate that the world's glaciers and ice caps had lost about 148 billion tons, or about 39 cubic miles of ice annually from 2003 to 2010. The total does not count the mass from individual glacier and ice caps on the fringes of the Greenland and Antarctic ice sheets -- roughly an additional 80 billion tons.

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http://www.eurekalert.org/pub_releases/2012-02/uoca-css020612.php

Gary Null, PhD., and Jeremy Stillman - The 12 Tipping Points

The 12 Tipping Points
By Gary Null, PhD., and Jeremy Stillman 

Currently, more than half of the population of the United States does not believe that Global Warming is real or that it is man-made. Most discussions involving our environment rest upon Global Warming as a single issue, however, we are confronted today with multiple environmental crises. Any one of these issues can cause extreme suffering and in some cases, cataclysmic devastation if they were to go so far as to tip. Hence, we present an exploration of these tipping points to better understand the dangers that we face and how to limit their negative consequences.

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James Hansen - Cowards In Our Democracies

Leading climate scientists have given their support to a Freedom of Information request seeking to disclose who is funding the Global Warming Policy Foundation, a London-based climate sceptic thinktank chaired by the former Conservative chancellor Lord Lawson. As the UK Guardian reported earlier this week, James Hansen, the director of the Nasa Goddard Institute for Space Studies who first warned the world about the dangers of climate change in the 1980s, has joined other scientists in submitting statements to be considered by a judge at the Information Rights Tribunal on Friday. Hansen has posted “Cowards in Our Democracies: Part 1"— his submitted statement and an explanatory intro

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http://thinkprogress.org/romm/2012/01/28/413955/james-hansen-on-cowards/?utm_medium=twitter&utm_source=twitterfeed&mobile=nc

Janet Larsen and Sara Rasmussen - 2011 Was A Year of Weather Extremes, With More to Come

The global average temperature in 2011 was 14.52 degrees Celsius (58.14 degrees Fahrenheit). According to NASA scientists, this was the ninth warmest year in 132 years of recordkeeping, despite the cooling influence of the La Niña atmospheric and oceanic circulation pattern and relatively low solar irradiance. Since the 1970s, each subsequent decade has gotten hotter -- and 9 of the 10 hottest years on record have occurred in the twenty-first century.

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http://www.treehugger.com/climate-change/2011-year-weather-extremes-more-come.html

Wall Street Journal Slammed for Giving Platform to Climate Change Deniers

In response to an op-ed printed late last week in the Wall Street Journal, signed by sixteen 'scientists' and entitled, 'No Need to Panic About Global Warming,' thirty-nine climate scientists have penned a letter, printed in today's WSJ, arguing that taking advice on climate change from scientists who have either "no expertise in climate science" or "extreme views that are out of step with nearly every other climate expert" is akin to allowing dentists perform heart surgery.

Suzanne Goldenberg reports for The Guardian:

The Wall Street Journal has received a dressing down from a large group of leading scientists for promoting retrograde and out-of-date views on climate change.

In an opinion piece run by the Journal on Wednesday, nearly 40 scientists, including acknowledged climate change experts, take on the paper for publishing an article disputing the evidence on global warming.

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http://www.commondreams.org/headline/2012/02/01-6

New Study: Climate Change Threatens World's Wheat Crop

A study released Sunday afternoon finds that wheat crop yields could plunge due, in part, to climate change. The study, published in Nature Climate Change, researchers warn that current projections underestimate the extent to which hotter weather in the future will accelerate this process. Extreme heat causes wheat crops to age faster and reduce yields, the Stanford University-led study shows, underscoring the challenge of feeding a rapidly growing population as the world continues to warm.

New Scientist magazine reported Sunday:

It could be much more difficult than we thought to feed everyone in a warmer world. Satellite images of northern India have revealed that extreme temperatures are cutting wheat yields. What's more, models used to predict the effects of global warming on food supply may have underestimated the problem by a third.

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http://www.commondreams.org/headline/2012/01/29-2

Bill Walker - Conservatives Use Creationist Playbook to Attack Climate Change Education in Schools

A few years ago, Cheryl Manning assigned a research project on climate change to her high school environmental science class in Evergreen, Colo. She presented the basic facts and data from peer-reviewed studies, then asked the students to look into the issue themselves and report back on what they learned.

Halfway through the unit, three students came to class up in arms. They questioned whether the data was made up and if government scientists were part of a plot — “like conspiracy theorists that say we never went to the moon,” Manning said. At a PTA meeting the students’ parents accused her of trying to undermine their children’s religious belief system.

“Peer-reviewed science is the Kool-Aid of the left-wing liberal conspiracy,” they said, adding a warning: “Be on your guard.”

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http://www.alternet.org/story/153909/conservatives_use_creationist_playbook_to_attack_climate_change_education_in_schools

Arctic climate change 'to spark domino effect'

The rate of Arctic climate change was now faster than ecosystems and traditional Arctic societies could adapt to. WA-based scientists have warned of "dire consequences" to the human race after detecting the first signs of dangerous climate change in the Arctic.

The scientists, from the University of WA, claim the region is fast approaching a series of imminent "tipping points" which could trigger a domino effect of large-scale climate change across the entire planet. In a paper published in the Royal Swedish Academy of Sciences' journal AMBIO and Nature Climate Change, the lead author and director of UWA's Oceans Institute, Winthrop Professor Carlos Duarte, said the Arctic region contained arguably the greatest concentration of potential tipping elements for global climate change.

"If set in motion, they can generate profound climate change which places the Arctic not at the periphery but at the core of the Earth system," Professor Duarte said.  "There is evidence that these forces are starting to be set in motion."

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http://www.smh.com.au/wa-news/arctic-climate-change-to-spark-domino-effect-20120130-1qpgv.html

The biodiversity crisis: Worse than climate change

Biodiversity is declining rapidly throughout the world. The challenges of conserving the world’s species are perhaps even larger than mitigating the negative effects of global climate change. Dealing with the biodiversity crisis requires political will and needs to be based on a solid scientific knowledge if we are to ensure a safe future for the planet. This is the main conclusion from scientists from University of Copenhagen, after 100 researchers and policy experts from EU countries were gathered this week at the University of Copenhagen to discuss how to organise the future UN Intergovernmental Panel for Biodiversity and Ecosystem Services, IPBES - an equivalent to the UN panel on climate change (IPCC).

Species extinction and the degradation of ecosystems are proceeding rapidly and the pace is accelerating. The world is losing species at a rate that is 100 to 1000 times faster than the natural extinction rate.

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http://news.ku.dk/all_news/2012/2012.1/biodiversity/

Michael Wertz & Laura Conley - Climate Change, Migration And Conflict: Addressing Complex Crisis Scenarios In The 21st Century

The costs and consequences of climate change on our world will define the 21st century. Even if nations across our planet were to take immediate steps to rein in carbon emissions—an unlikely prospect—a warmer climate is inevitable. As the U.N. Intergovernmental Panel on Climate Change, or IPCC, noted in 2007, human-created “warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice and rising global average sea level.”

As these ill effects progress they will have serious implications for U.S. national security interests as well as global stability—extending from the sustainability of coastal military installations to the stability of nations that lack the resources, good governance, and resiliency needed to respond to the many adverse consequences of climate change. And as these effects accelerate, the stress will impact human migration and conflict around the world.

It is difficult to fully understand the detailed causes of migration and economic and political instability, but the growing evidence of links between climate change, migration, and conflict raise plenty of reasons for concern. This is why it’s time to start thinking about new and comprehensive answers to multifaceted crisis scenarios brought on or worsened by global climate change. As Achim Steiner, executive director of the U.N. Environment Program, argues, “The question we must continuously ask ourselves in the face of scientific complexity and uncertainty, but also growing evidence of climate change, is at what point precaution, common sense or prudent risk management demands action.”

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http://www.americanprogress.org/issues/2012/01/climate_migration.html