Southern Ocean Iron May Have Come from the Depths, Not the Atmosphere
December 19 — Scientists believe that increases in plant life in the Southern Ocean are associated with increases in iron, which acts as a fertilizer, in the ocean water. (American Geophysical Union release) More

Here Comes the Rain
December 19 — Even just a degree or two of greenhouse warming will have a dramatic impact on water resources across western North America. (New Scientist release) More

Antarctic Mud Reveals Ancient Evidence of Global Climate Change
December 14 — Scientists concerned about global warming are especially troubled by dramatic signs of climate change in Antarctica - from rapidly melting glaciers to unexplained declines in penguin populations. (Stanford University release) More

The Past Says Abrupt Climate Change in Our Future
December 13 — Past climates changed abruptly, suggesting that abrupt changes in the future will also occur, according to a Penn State geoscientist. (Penn State release) More

Engineered Strategies to Mitigate Global Warming Could Influence Biosphere
December 12 — Blocking the sun may not be such a cool way of counteracting climate change, scientists at the University of Illinois say. (University of Illinois at Urbana-Champaign release) More

LLNL Scientists to Present Tool for Ridding the Atmosphere of Excess Carbon
December 12 — Researchers present evidence that a new method for capturing carbon dioxide from power plants and placing it in the ocean has less impact on marine life than atmospheric carbon dioxide release or other global warming mitigation methods. (Lawrence Livermore National Laboratory release) More

Alaska's Columbia Glacier Will Retreat 10 Miles
December 11 — New research indicates the massive Columbia Glacier in Alaska will continue to increase its rate of recession over the next decade, possibly retreating as much as 10 miles in that time and creating a new fjord. (University of Colorado at Boulder release) More

Pollution in Asian Air Mass Likely Measured on Both Sides of Pacific
December 11 — Scientists watched closely last spring as a haze of pollution, which had been tracked by satellite as it crossed the Pacific Ocean, settled over a large swath of North America from Calgary, Canada, into Arizona. (University of Washington release) More

New Study Shows Early Signals of Climate Change in Earth's Cold Regions
December 10 — Global mean temperatures have risen one degree Fahrenheit over the past 100 years, with more than half of the increase occurring in the last 25 years. (University of Colorado at Boulder release) More

Tiny Particles of Pollution May Carry Large Consequences for Earth's Water Supply
December 6 — A new study argues that particles of human-produced pollution may be playing a significant role in weakening Earth's water cycle, much more than previously realized. (Scripps Institution of Oceanography at the University of California, San Diego release) More

Floods Ain't What They Used To Be
December 3 — In the Midwest, floods are worse than ever, according to two Washington University professors. (Geology Magazine release) More

Paradox of Groundwater Age Has Implications for Hydrology
December 3 — How old is your groundwater? Chances are, it?s much older than you, or many scientists, had thought. (University of Illinois at Urbana-Champaign release) More

Shipboard Aerosol Measurements Enhance Climate Models
December 3 — Sea-level measurements of aerosol properties in the Pacific Ocean, are helping to quantify aerosol optical properties related to climate change. (University of Illinois at Urbana-Champaign release) More

Beware of Leap Year When Predicting Climate Change, Warns Researcher
December 3 — A word of warning to scientists studying climate change: Don't forget to factor leap year into your calculations. (Stanford University release) More

Stratospheric Polar Vortex Influences Winter Cold, Researchers Say
December 1 — A mechanism to explain how the behavior of the stratosphere may affect tropospheric weather patterns has been proposed by scientists at the University of Illinois. (University of Illinois at Urbana-Champaign release) More

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