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Science News February 14, 2009 Lonnie Thompson |
Receding Glaciers Erase Records Of Climate History Ice masses on the tops of mountains -- sticking out in the free atmosphere -- have been collecting climate data and storing them, in many cases for very long periods. |
Smithsonian July 2007 J. Madeleine Nash |
Chronicling the Ice Long before global warming became a cause celebre, Lonnie Thompson was extracting climate secrets from ancient glaciers. He finds the problem is even more profound than you might have thought. |
Geotimes April 2007 Megan Sever |
Ancient Glaciers Melting Quickly Peru's Qori Kalis is one of the few remaining tropical glaciers, and it may be gone in five years, reported a glaciologist at Ohio State University. The melting of the Quelccaya Ice Cap poses new hazards to the people living in valleys below the peak. |
Geotimes August 2007 Carolyn Gramling |
No More "Snows of Kilimanjaro"? Mount Kilimanjaro's glaciers have receded dramatically, making the highest point in Africa a high-profile poster child for global warming. Some scientists contend, however, that Kilimanjaro is a poor example, as its glaciers were disappearing before warming set in. |
Scientific American July 2008 Peter Brown |
NASA Satellites Watch Polar Ice Shelf Break into Crushed Ice Ice is melting at the poles much faster than climate models predict. |
Geotimes June 2005 Naomi Lubick |
Lonnie Thompson: Tracking Ice in the Tropics His work exploring some of the most remote alpine glaciers in the world has established their value as a repository of climate data -- and their rapid disappearance, which has accelerated alarmingly as global climate changes. |
Geotimes November 2003 Sara Pratt |
Stuck between a rock and a cold place A stalagmite mined from an island cave in the Indian Ocean suggests that the ages currently assigned to the gold standard of ancient climate records -- the Greenland ice cores -- need revision for the period between 55,000 and 42,000 years ago. |
Geotimes March 2006 Powell et al. |
Drilling Back to the Future Antarctica plays a fundamental role in sea-level change and ocean chemistry, and has the potential for important societal impacts over human timescales. |
Smithsonian October 2006 Anne Bolen |
Life in the Field - Frozen in Time Glaciers in the Pacific Northwest have recorded hundreds of years of climate history, helping researchers plot how quickly the planet is warming. |
IEEE Spectrum February 2005 William Sweet |
Victor Zagorodnov: Getting High on Glaciers How did a Russian who worked his way through an institute of the Russian Academy of Sciences in Moscow, earning degrees in electrical engineering and hydrology, end up working in Ohio for the world's leading research group in the field of tropical and subtropical glaciers? |
Geotimes December 2004 Sara Pratt |
Antarctic Ice Connections The West Antarctic ice sheet contains 3.2 million cubic kilometers of ice. Were it to collapse due to global warming, it would raise global sea level by 5 meters, catastrophically inundating low-lying areas. |
Geotimes May 2007 Kathryn Hansen |
Martian Pole Boasts Icy Detail A new map of Mars' south pole revealed that the ice cap is composed almost entirely of water ice and measures up to 3.7 kilometers thick. |
Smithsonian August 2005 Laura Helmuth |
Phenomena and Curiosities: Baked Alaska A unique study documents the disappearance of Alaska's glaciers, blamed on global warming. |
Geotimes April 2005 |
Geomedia Arctic Climate Change in Photos... Book review: Frozen Earth: The Once and Future Story of Ice Ages by Doug Macdougall... Mapping Sinkhole Risk in Maryland... |
Geotimes November 2004 Naomi Lubick |
Past warming for the future As the Bush administration prepares for a second term, only time will tell how its climate change policy will change in the next four years. In the meantime, discussions of the science behind climate changes abound in the journals and within the scientific community. |
Geotimes November 2007 Nicole Branan |
Water Pours Through Pores in Sea Ice Scientists have come up with a new model that describes how water moves through the Arctic sea ice beneath melt ponds, helping them to make better climate predictions. |
Geotimes December 2006 |
Top Climate News Stories of 2006 A new public face for climate change... Strong debate over storms... Thawing ice shifts water cycles... Methane climate menagerie... etc. |
Chemistry World January 23, 2013 |
Chemical climate proxies With the climate change debate as heated as ever, how do scientists reconstruct what the weather was like in the past? Jon Evans looks at the detective chemistry behind such environmental forensic work |
Geotimes August 2004 Naomi Lubick |
Doubling the Ice Record A team of European researchers released their first round of results from the longest ice core ever to be recovered from a polar glacier. Measurements show some interesting temperature shifts that may cause climatologists to reevaluate their models. |
Geotimes June 2007 Megan Sever |
Antarctic Ice May be Grinding to a Halt Some of Antarctica's ice sheets may not be in as much danger as once thought. |
Scientific American September 2008 Krista West |
Researchers hone seismic skills to peer inside glaciers Seismic data enable scientists to peer inside melting glaciers before they calve |
Geotimes October 2007 Moran & Backman |
The Arctic Ocean: So Much We Still Don't Know In 2004, the Arctic Coring Expedition team took three ships to the Arctic to drill a core near the Lomonosov Ridge. The team's results are teaching us more than we ever knew about the past 65 million years in the Arctic. |
Geotimes April 2007 Sally Adee |
Massive Antarctic Lakes Discovered The recent discovery of a massive "plumbing" system of linked reservoirs 1,000 meters beneath two major ice streams of the West Antarctic Ice Sheet may help fill out climate change models. |
Popular Mechanics March 15, 2010 Trevor Williams |
Iceberg Forensics: Predicting the Planet's Future With Antarctic Ice Something new is happening with the ice streams and glaciers. They are getting thinner, and they are getting thinner because they are speeding up. |
Popular Mechanics December 7, 2007 Logan Ward |
Climate Engineers Build UAV, Radar to Process Subzero Mystery Combining digital radar equipment with unmanned aircraft gives scientists a much-needed edge in understanding why the polar ice sheets are undergoing rapid changes. |
Geotimes March 2007 Nicole Branan |
Volcanic Signatures Reveal Climate Clues Besides providing a new tool to look at the climate impact of past volcanic eruptions, a new study also brings atmospheric scientists a step closer to unraveling the chemistry that sulfur aerosols undergo while they are in the stratosphere, which could help improve climate models. |
Geotimes May 2004 Sara Pratt |
Ice in the Greenhouse? The greenhouse world of the Late Cretaceous, long thought to be ice-free, may have been chillier than previously predicted. |
Geotimes October 2005 Kathryn Hansen |
Greenhouse Gases Revisited Scientists say now that a new method of tracking the effects of greenhouse gases could lead to a more accurate understanding of their impact on climate change, which other scientists say the Arctic is already experiencing on a dramatic scale. |
Wired April 2000 Oliver Morton |
Ice Station Vostok The fast track to the moons of Jupiter - and the key to life on Earth - is a prehistoric lake nearly three miles beneath the Antarctic ice cap. |
IEEE Spectrum February 2013 Dave Levitan |
Laser Eyes Spy a Big Melt in the Arctic Airborne altimeters yield a disturbing picture of polar ice loss |
IEEE Spectrum September 2011 Paden et al. |
A Next-Generation Ice Radar Scientists can now probe polar ice sheets better than ever using synthetic-aperture radar |
Chemistry World September 27, 2007 Simon Hadlington |
Scientists Uncover How Last Ice Age Ended Scientists have shown that the end of the last age 19,000 years ago began in the higher latitudes of the southern hemisphere before sweeping into the tropics. |
National Defense December 2009 Austin Wright |
Polar Ice Surveillance At Rock Bottom Prices University of Kansas researchers needed an unmanned aerial vehicle that could carry 120 pounds worth of radar equipment at low altitudes and over icy terrain to measure vital information for the Navy in Antarctica. |
Geotimes October 2003 Sara Pratt |
Ancient glaciers near L.A. The small alpine glaciers that once existed 120 kilometers east of Los Angeles, Calif., were, according to a new study, present as recently as 5,000 years ago, a time when regions to the north had already become ice-free. |
Geotimes March 2005 Naomi Lubick |
Paleo-Antarctic Puzzle Even though Antarctica was at the south pole around 35 million years ago, it was warm and relatively ice free. What exactly caused its shift to a deep freeze has long puzzled paleoclimatologists. |
Geotimes May 2005 Naomi Lubick |
Heat Imbalance Portends Problems Results from a new assessment show that Earth is absorbing more energy than it releases into space, with implications for climate change that researchers say point to future warming with consequences for melting ice sheets and sea-level rise. |
Science News April 11, 2009 Michel Jarraud |
Bracing For Global Climate Change Is A Local Challenge The secretary-general of the U.N. World Meteorological Organization discusses whether global climate change is real. |
Popular Mechanics July 1, 2009 Andrew Moseman |
5 Climate Studies That Don't Live Up to Their Hype A leading climate scientist argues that overbroad claims by some researchers -- coupled with overblown reporting in the media -- can undermine the public's understanding of climate issues. |
Popular Mechanics October 1, 2008 Andrew Moseman |
Newest Arctic Melt Record Leaves Scientists Scratching Heads There's good news and bad news when it comes to the amount of ice in the Arctic. |
Geotimes February 2007 Sally Adee |
Escape From Snowball Earth Early Earth didn't do things half-way: It may or may not have ever been a solidly frozen "snowball" in the deep geological past, but it was never a half-frozen ball of slush, according to a new study. |
Adventure August 2004 Lolly Merrell |
The Vanishing World of Lonnie Thompson A secret history of the world's climate, including global warming, is buried deep inside glaciers atop the world's tallest peaks. But as temperatures rise, those records are melting. One paleontologist/climatologist is racing to preserve a crucial piece of our past- in his freezer. |
Geotimes January 2007 Margaret Putney |
Ice Reveals Polar Temperature Seesaw A new ice core from Antarctica directly correlates abrupt changes in Greenland's climate over the last 150,000 years with counterpart changes in Antarctica -- offering further indication that the two icy regions are connected by ocean currents in a sort of bipolar seesaw. |
Geotimes April 2007 Katherine Unger |
Two Continents, One Conclusion A sharp change in climate tens of millions of years ago was global, not regional as previously thought, according to two new studies. That could have implications for global climate change in the modern world, researchers say. |
Geotimes January 2004 Naomi Lubick |
Longer polar ice record Geoscientists have beefed up a dataset documenting ice cover at Earth's poles, revealing a longer and slightly different picture than painted in the past by satellite observations. |
Geotimes October 2003 Sara Pratt |
New model for glacial erosion Understanding what controls glacial erosion may have important implications for understanding glaciated mountain belts and modeling both ancient and current ice sheets. |
Scientific American March 2007 Charles Q. Choi |
Pole Positions More than 30 nations are initiating a global campaign to study the Arctic and Antarctic: an International Polar Year. |
Geotimes September 2003 Megan Sever |
Climate debate in the journals, on the Hill While few people disagree that Earth's surface has warmed over the past few decades, the arguments and accusations start flying when the discussion turns to whether or not the warming is an anomalous result of human activity or part of natural climate change. |
Geotimes November 2006 Margaret Putney |
Ice Reveals Polar Temperature Seesaw A new ice core from Antarctica directly correlates abrupt changes in Greenland's climate over the last 150,000 years with counterpart changes in Antarctica -- offering further indication that the two icy regions are connected by ocean currents in a sort of bipolar seesaw. |
IEEE Spectrum December 2005 Erico Guizzo |
Into Deep Ice What does the future hold for Earth's ice? A group of British researchers seeks answers in the bowels of a glacier. |
Geotimes November 2003 Mahmood et al. |
Snapshots from Space of the World's Continents Studying Earth as a system -- including the hydrological, biological, geochemical, cryospheric and solid earth components -- requires routine acquisition of high-resolution, synoptic-scale observations that can be composited into snapshots of Earth in a sequence of moments. |