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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. |
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 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 October 2006 |
Geocatastrophes Catastrophe and Opportunity in an Ancient Hot-House Climate... When the Mediterranean Dried Up: Forensics of a Geocatastrophe... The Great Death: Redefining a Mass Extinction... |
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. |
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 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 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 February 2013 Dave Levitan |
Laser Eyes Spy a Big Melt in the Arctic Airborne altimeters yield a disturbing picture of polar ice loss |
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 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 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. |
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 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. |
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 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. |
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. |
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 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 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. |
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. |
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 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. |
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 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 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. |
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 2004 Hetherington et al. |
Quest for the Lost Land The search for early Americans is taking researchers to the coast of British Columbia, where a now-submerged landscape may hold clues to the first settlers' coastal migration. |
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 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... |
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 May 2004 Sara Pratt |
Ocean Anoxia Researchers are using microfossils to date ocean anoxic events, or severe oxygen depletion in the ocean, back to 132 million years ago. The findings will open up several new avenues of inquiry including the impact of the global carbon cycle perturbation on the biosphere as a whole. |
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. |
Scientific American April 2007 David Biello |
Conservative Climate The Intergovernmental Panel on Climate Change's consensus document may understate the climate change problem. |
Geotimes February 2005 Martin & Case |
Fossil Hunting in Antarctica Expeditions to the continent of Antarctica has brought great information about animals in the distant past and show that the world, and particularly Antarctica, was much warmer around 70 million years ago compared to the present. |
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 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. |
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 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. |
IEEE Spectrum May 2007 William B. Gail |
Climate Control We will be able to engineer the Earth to our liking -- but we'd better start now. Before we picked a climate, we would need to evolve the political, commercial, and academic institutions to get us there. |
Geotimes September 2004 Naomi Lubick |
Measuring Sea-Level Rise As sea level rises, it threatens to flood the low-lying South Pacific islands that make up the 10-square-mile country of Tuvalu, none of which are higher than 4.5 meters above the ocean. |
Geotimes December 2003 Megan Sever |
A year of global ice observations Scientists are now getting the most accurate view ever of changes in the Antarctic and Greenland ice sheets. The new maps, using NASA's Ice, Cloud and Land Elevation Satellite, are shedding light on the processes controlling these ice masses, which comprise 75 percent of Earth's freshwater. |
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 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. |
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. |
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. |
Outside February 2004 Natasha Singer |
Break On Through The dream of a Northwest Passage linking the Atlantic to the riches of Asia has driven explorers and visionary adventurers for centuries. With climate change in the air, The author braves the frigid 900-mile journey to find out if the old, mythic dream is becoming an epic new reality. |
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. |