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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 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 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 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 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 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 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 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. |
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 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 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 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 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 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. |
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. |
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 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. |
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 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. |
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. |
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 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 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. |
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 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 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 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. |
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 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 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. |
Reason April 2004 Ronald Bailey |
Why Warming? The United Nations Intergovernmental Panel on Climate Change claims to have found "new and stronger evidence that most of the observed warming over the last 50 years is attributable to human activities. |
Geotimes December 2003 Sara Pratt |
Cool Cambrian triggers life A controversial hypothesis put forth by a team of German researchers says the Cambrian explosion -- the momentous increase in biodiversity 542 million years ago that spawned most modern animal groups -- was caused by life itself. |
Geotimes April 2003 Greg Peterson |
El Nino's future While forecasters can now predict El Nino events up to a year before they reach their peak, the impacts of long-term climate change on El Nino remain difficult to pin down. |
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 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 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. |
IEEE Spectrum August 2010 Paul McFedries |
Technically Speaking: Hacking the Planet There's plenty of controversy swirling around the idea of climate intervention -- and no shortage of new words |
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. |
National Defense January 2010 Austin Wright |
Coast Guard Examines Future of Patrolling The Arctic The Coast Guard anticipates increased duties patrolling the Arctic region due to global warming. |
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 April 3, 2009 Trevor Williams |
Ocean Drilling: How the Past Can Provide Clues to our Planet's Future Climate By pulling cores of ancient ooze from beneath the ocean floor, scientists hope to learn how the Earth responded to climate change 50 million years ago and how it may react to future warming. |
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. |
Geotimes July 2005 Megan Sever |
Carbon Leaching Out of Siberian Peat New research is showing that as temperatures rise across the Arctic, carbon once locked up in permafrost soils may begin escaping into the area's waterways. |
Geotimes March 2004 Kasey White |
A New Era of Ocean Drilling Sets Sail As the JOIDES Resolution arrived in Galveston, Texas, last September after completing its 110th and final Ocean Drilling Program (ODP) expedition, scientists celebrated the many advances made during the program. |
Chemistry World March 2006 Katie Gibb |
Extreme Analysis High pressures, cold temperatures and inaccessible samples all make analytical work challenging for chemists. Science still has a lot to gain from studying and working in extreme environments. |
Popular Mechanics June 12, 2009 Jerry Beilinson |
Climate Change Solutions: Live From World Science Festival 2009 The roundtable session, called "Carbon Conundrum," took place in front of an audience of about 150 on day two of the World Science Festival. |
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 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. |