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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 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%. |
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 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. |
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 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 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 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 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. |
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 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 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 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 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 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 December 2004 Sara Pratt |
Acidic Waters Threaten Sea Life High acidity in the world's oceans may be threatening coral populations, such as those in the Florida Keys National Marine Sanctuary. |
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. |
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 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. |
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 |
Reason November 2008 |
Letters Letters to the Editor: Carbon: tax, trade, or deregulate?... |
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 August 7, 2006 Ned Stafford |
Sea Sediment Storage Proposed for Carbon Dioxide It may be possible to fight global warming by burying carbon dioxide in reservoirs hundreds of meters below the ocean floor. |
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. |
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. |
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. |
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 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 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 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. |
Popular Mechanics November 3, 2008 Andrew Moseman |
How Geoengineering Works: 5 Big Plans to Stop Global Warming Some scientists believe that now is the time to research such proposals so that in 10 or 20 years, should governments fail to act, scientists have them at the ready. |
Popular Mechanics December 1, 2009 Peter Kelemen |
What East Anglia's E-mails Really Tell Us About Climate Change What stolen e-mails from climate scientists corresponding with East Anglia University tell us about global warming and what they don't. |
Geotimes March 2006 Kathryn Hansen |
Marine Critters Record Global Warming Layers of fossilized marine creatures have acted as an independent record of ocean temperature for millennia. Now, data from such layers is mirroring the same warming trend that instruments have shown -- suggesting humans are contributing to global warming. |
Science News May 9, 2009 |
Science Past From The Issue Of May 9, 1959 Scientists predict 25% increase in carbon dioxide by the year 2000. |
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. |
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. |
Chemistry World January 28, 2009 Nina Notman |
Iron helps oceans capture more carbon A team of international scientists studying the role of iron in the storage of carbon under the ocean have confirmed that natural iron fertilisation increases the rate of carbon capture. |
Chemistry World April 2007 Mark Peplow |
Editorial: Swindled? The bottom line is that just a few degrees increase in global average temperatures is likely to have a severe impact on human life. The silver lining of anthropogenic climate change is that, being man-made, at least we stand a chance of doing something about it. |
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 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 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 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. |
Chemistry World August 25, 2013 Daniel Johnson |
Unconsidered chemistry could amplify global warming A link between the world's oceans' pH and climate change that has, until now, passed unnoticed could dramatically speed up global warming by lowering production of a smelly molecule, dimethyl sulfide, important for cloud formation. |
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. |
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. |
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 |
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 May 2006 Carolyn Gramling |
Natural Bumps in the Atmosphere Temperatures at Earth's surface have been rising for decades, but in the upper atmosphere, the temperature is slowly dropping. In explaining this change, scientists have focused on human-related causes -- but a new study shows that nature should not be ignored. |
Geotimes July 2004 Sara Pratt |
Recalculating the Warming Trend Over the past 15 years climate researchers have observed that while temperatures at the earth's surface have been quickly on the rise, the troposphere has been warming more slowly than expected. |
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. |