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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 |
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. |
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 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 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 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 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 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. |
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. |
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 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 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 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 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 November 2007 Erin Wayman |
Sudden Climate Change Not Neanderthals' Downfall New research suggests abrupt climate change is not to blame for the extinction of Neanderthals. Instead, competition from modern humans probably played a large role. |
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 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 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 February 2007 Katherine Unger |
Climate to Blame in Cultural Collapses The Anasazi people in the Four Corners region of the American Southwest disappeared suddenly, possibly due to climate change that made food and water sources scarce. Researchers are now linking several past periods of climate change with failed civilizations. |
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 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 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 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 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 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. |
Geotimes April 2005 Michael Glantz |
What Makes Good Climates Go Bad? Climates are constantly changing in both linear and nonlinear ways and over the course of life on Earth, organisms have either adjusted to those changes or perished. |
Scientific American April 2007 David Biello |
Conservative Climate The Intergovernmental Panel on Climate Change's consensus document may understate the climate change problem. |
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. |
Popular Mechanics May 1, 2009 Andrew Moseman |
Ice Sculptures for Science: Chain Saws, Pickaxes, Methane Hydrates and Climate Change One of the greatest unknowns regarding the future pace of climate change involves a source of greenhouse gases we can't even see, let alone control. |
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. |
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. |
Geotimes February 2007 Carolyn Gramling |
Past El Ninos Portend Future Climates A new study examining evidence of long-term variability at El Nino's source suggests the strength of the phenomenon is highly sensitive to even small changes in climate. That sensitivity could have implications for how it plays into future climate change. |
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. |
Reactive Reports Issue 32 David Bradley |
Climatic models A fundamental flaw in our models of global climate change has been exposed by Sallie Baliunas of the Harvard-Smithsonian Center for Astrophysics. |
Geotimes July 2006 Megan Sever |
Climate Resolution A resolution on global warming, stating that the House of Representatives recognizes that warming is real and caused by excessive greenhouse gases in the atmosphere, reached the floor of the House, but was blocked from a vote. |
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 April 2004 Tim Palucka |
A Climate of Your Own The largest climate modeling experiment ever devised is running on borrowed time, literally. The model is taking computing time on loan from more than 47,000 personal computers worldwide, with the full knowledge and consent of their owners. |
Geotimes December 2003 Megan Sever |
Humans impact the climate, says AGU The American Geophysical Union (AGU) has adopted a new position statement on climate change that recognizes the increasing alteration of the Earth's climate by human activities. |
Geotimes July 2007 Kathryn Hansen |
Ancient Ocean Burps A sediment core extracted from the ocean floor off the coast of Baja, Calif., indicates two "burps" of carbon dioxide were once released from a deep, stagnant part of the ocean. |
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. |
Industrial Physicist Aug/Sep 2004 Forest, Webster & Reilly |
Narrowing uncertainty in global climate change Unknowns hamper the initiation of climate-mitigation policies. |
Geotimes December 2006 Megan Sever |
Climate Policy -- Wading Into Heated Politics: Q&A with Gerald North An interview with National Academy of Sciences committee chair Gerald North about his experiences examining the hockey stick climate report, testifying about climate change before Congress, and about his thoughts on the climate policy debate. |
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. |
Science News August 4, 2007 Julie J. Rehmeyer |
Math Trek: Cloudy Crystal Balls Computer models may never be able to predict climate accurately. |
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 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 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. |
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. |
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. |