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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 November 2006 Megan Sever |
Conveyor Belt Shutdown Not Imminent As the climate warms and ice on Greenland melts, freshwater pours into the North Atlantic, which new research suggests is unlikely to cause a shutdown in global ocean circulation. |
Geotimes February 2006 Naomi Lubick |
Is Ocean Circulation Slowing Down? New measurements of temperature and salinity in the North Atlantic indicate that changes are occurring in this segment of the ocean's circulation that could eventually affect Earth's climate. |
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. |
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. |
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 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 August 2006 Megan Sever |
From Hot to Cold in the Arctic For the first time, scientists have recovered direct evidence of what life in the Arctic has been like for the past 56 million years. A new 400-meter-long sediment core is revealing that all in the Arctic has not always been as it seems. |
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 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. |
Geotimes May 2003 Greg Peterson |
A new trigger for Ice Age retreat About 14,600 years ago, a huge pulse of freshwater drained from continental ice sheets into the world's oceans. Now scientists have a new theory for where it came from. |
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. |
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. |
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 December 2005 Kevin E. Trenberth |
A Warming World Climate change is with us; we cannot stop it, although we can slow it down. It behooves us therefore to track how and why the climate is changing. |
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. |
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. |
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 April 2007 Carolyn Gramling |
Wallace Broecker: Changes in the Atmosphere An interview with an expert on issues of climate change about his experiences advising politicians about the consequences of climate change and his hopes for new technologies of carbon sequestration. |
Geotimes June 2006 Kathryn Hansen |
Fish Teeth Bite Into Antarctic Formation Ancient fish teeth are taking a bite out of an old conundrum about how Antarctica became the frigid continent that it is today. The teeth suggest an early start to key oceanic processes that drove the climatic shift. |
Geotimes June 2006 Erika Engelhaupt |
Warming Opened Americas to Humans About 18,000 years ago the comparatively luxuriant Americas beckoned to hunter-gatherers in eastern Asia by way of present-day Alaska, with warmer climes and plenty of fish and game, say geoarchaeologists. |
Popular Mechanics August 12, 2008 Laurie J. Schmidt |
Sensor-Laden Super Seals Dive Deep for New Global Warming Data A behemoth marine mammal whose diving skills would put an Olympic athlete to shame has become a surprise player in climate-change studies |
Popular Mechanics February 19, 2010 Trevor Williams |
On Thick Ice: Live From An Antarctic Drilling Trip The Integrated Ocean Drilling Program is exploring the ocean floor around Antarctica to learn how the ice sheet reacted in warmer climates of the past and how they might respond to future warming. |
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. |
Chemistry World August 2008 |
Cold chemistry Intrepid researchers will brave the harshest conditions in the name of science. Ned Stafford talks to some of Antarctica's chemists |
Geotimes January 2005 Megan Sever |
Stalagmite Shows Connected Climate Clues from inside caves in Costa Rica and Panama are helping scientists develop temperature and rainfall records for the last 20,000 years |
Chemistry World October 15, 2013 Jessica Cocker |
Banned pollutants bite back A new study from scientists in Denmark and the UK says another worrying consequence of global temperature rises is that, as sea ice melts, banned pesticides are being reemitted into the open environment. |
Geotimes April 2007 Sally Adee |
Rainfall Affected by Climate Change Global climate change will likely cause significant changes in the world's rainfall patterns, according to researchers working on the Intergovernmental Panel on Climate Change Fourth Assessment Report summary. |
Outside October 2002 Ian Frazier |
Terminal Ice Hot enough for you? Go to the bottom of the planet -- or the top -- and you can't miss the warning signs of a warm apocalypse. And at the heart of the mystery, like broken shards of a colder climate, float the icebergs, ghost-white messengers trying to tell us something we can't fathom. |
Scientific American April 2007 David Biello |
Conservative Climate The Intergovernmental Panel on Climate Change's consensus document may understate the climate change problem. |
Chemistry World April 23, 2009 Hayley Birch |
Wetlands caused ancient methane belch Air trapped in ancient ice has revealed the likely source of the sudden spike in atmospheric methane concentrations that occurred at the end of the last ice age |
Geotimes August 2004 Gregory Jones |
Making Wine in a Changing Climate History has shown that climate and wine are intricately linked. And many growing regions are either at or nearing their optimum climates for the varieties grown and wine styles produced. |
Reason October 2005 Sallie Baliunas |
Full of Hot Air Book review: A climate alarmist takes on "criminals against humanity" in Boiling Point: How Politicians, Big Oil and Coal, Journalists and Activists Are Fueling the Climate Crisis -- And What We Can Do to Avert the Disaster, by Ross Gelbspan. |
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 |
Geotimes May 2007 Jessica F. Larsen |
A Comment on... Volcanoes in a Changing Global Climate It is highly speculative at present to predict how global climate change will transform the science of volcanology. Yet it is important that we begin to anticipate how the impacts of volcanoes will change, as population and precipitation patterns adjust to climate change during the 21st century. |
Geotimes February 2007 Nicole Branan |
Shifting Winds Shift Warming Trends? New model simulations indicate that a poleward shift in the Southern Hemisphere westerly winds could cause the Southern Ocean's carbon dioxide and heat uptake to increase by up to 20%. |
Geotimes November 2005 Kathryn Hansen |
Salting a Stagnant Ocean In its Third Assessment Report, the Intergovernmental Panel on Climate Change flagged the potential sudden collapse of the thermohaline circulation in the Atlantic, which warms Europe to its current habitable climate, as a significant source of concern. |
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 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. |
Geotimes June 2007 Fred Schwab |
Plunging into the Debate on Climate Change Debate continues about whether the warming effects of greenhouse gases are overshadowed by natural events. |
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. |
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 September 2011 Paden et al. |
A Next-Generation Ice Radar Scientists can now probe polar ice sheets better than ever using synthetic-aperture radar |
Geotimes October 2007 Nicole Branan |
Current Not Responsible for Antarctica's Ice? The long-held theory of the Antarctic Circumpolar Current triggering the continent's formation of its permanent ice sheet is being challenged by a new study suggesting that a strong ACC didn't start until about 10 million years after the ice cap formed. |
Reason November 2008 |
Letters Letters to the Editor: Carbon: tax, trade, or deregulate?... |
Geotimes October 2004 Naomi Lubick |
Extinction Realities Baffling Flash-Frozen Science A highly exaggerated storm surge floods New York City in "The Day After Tomorrow," a movie that while entertaining, bends several laws of physics in its dramatization of sudden climate change. |
Geotimes March 2006 Naomi Lubick |
Ice Hunter: Q&A With Lonnie Thompson An interview with glaciologist and Byrd Polar Research Center scientist Lonnie Thompson about what it mean to hunt ice and about some his current work. |
Geotimes September 2006 Lee Gerhard |
Testing Global Warming Hypotheses Global climate change has been a natural phenomenon driven by natural processes for 4.5 billion years. Nevertheless, cultural pressures exist to identify a human cause for current global climate change. |
Geotimes February 2005 Naomi Lubick |
Virtual Climate Experiment's Results A worldwide global climate experiment that ran on tens of thousands of personal computers across the planet offered the most extreme scenario yet for global warming. |
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. |