Earth Observation Satellites to Contribute to International Polar Year
June 30 — Thousands of scientists from 60 countries will be conducting research during International Polar Year 2007-2008 and will be armed with satellite measurements offering complete coverage of the polar regions. (European Space Agency press release) More

Food-Crop Yields Decline in Future Greenhouse-Gas Conditions
June 29 — New research finds food crops grown under projected carbon dioxide levels of the future are less productive and that global food supplies could be at risk. (University of Illinois-Urbana-Champaign press release) More

Hurricanes and the U.S. Gulf Coast
June 26 — The American Geophysical Union published a report to guide policy makers charged with rebuilding areas affected by Hurricanes Katrina and Rita, addressing current understanding of the phenomenon, near-term scientific needs, and longer-term directions. (American Geophysical Union press release) More

Scientists Simulate Appearance of Sun's Corona during Eclipse
June 26 — The most true-to-life computer simulation ever made of our Sun's multimillion-degree outer atmosphere successfully predicted its actual appearance during this year's solar eclipse, scientists said. (National Science Foundation press release) More

Tracking Earth's Wobbles Down to the Size of a Cell Phone
June 26 — Scientists have taken advantage of a quirk in the pattern of large-scale motions and the advent of the Global Positioning System to pin down Earth's short-term wobbles. (American Geophysical Union press release) More

Tropical Ice Cores Show Two Abrupt Global Climate Shifts
June 26 — For the first time, glaciologists have combined sets of ancient climate records trapped in ice cores from the South American Andes and the Asian Himalayas to paint a picture of how climate has changed � and is still changing � in the tropics. (Ohio State University press release) More

'High Confidence' That Planet Is Warmest in 400 Years
June 22 — There is sufficient evidence from tree rings, boreholes, retreating glaciers, and other "proxies" of past surface temperatures to say that the last few decades of the 20th century were warmer than any comparable period in the last 400 years, according to a new report. (National Academy of Sciences press release) More

Global Atmospheric Carbon Level May Depend Primarily on Southern Ocean
June 22 — Circulation in the waters near the Antarctic coast may be one of the planet's critical means of regulating levels of carbon dioxide in the Earth's atmosphere, according to researchers. (Princeton University press release) More

Global Warming Surpassed Natural Cycles in Fueling 2005 Hurricane Season
June 22 — A new study finds global warming accounted for around half of the extra hurricane-fueling warmth in the waters of the tropical North Atlantic in 2005, while natural cycles were only a minor factor. (National Center for Atmospheric Research press release) More

Researchers Develop New Model of Ice Volume Change Based on Earth's Orbit
June 22 — A new model proposes that during the Northern Hemisphere Ice Age around two million years ago, ice volume changes occurred in both the Northern Hemisphere and Antarctica, each controlled by different amounts of local summer insolation. (Boston University press release) More

New Scripps Study Reveals San Andreas Fault Set for the 'Big One'
June 21 — A new study shows the San Andreas fault has been stressed to a level sufficient for the next "big one" -- an earthquake of magnitude seven or greater -- and the risk of a large earthquake in this region may be increasing faster than researchers had believed. (Scripps Institution of Oceanography press release) More

What Can a Magnet Tell You About Rain Patterns? More Than You Would Guess
June 21 — By analyzing statistical properties of the relationship between water vapor in the atmosphere and rainfall with satellite data, researchers report that the onset of intense tropical rain and magnetism share the same underlying physics. (University of California-Los Angeles press release) More

Human Activities in Arid Urban Environments Can Affect Rainfall and Water Cycle
June 19 — A study using a unique 108-year-old data record and NASA's Tropical Rainfall Measuring Mission satellite concludes that arid cities such as Riyadh, Saudi Arabia, and Phoenix have an effect on rainfall patterns around them and that human activities such as land use, aerosols, and irrigation affect the entire water cycle. (University of Georgia press release) More

Hurricanes and the U.S. Gulf Coast
June 19 — The American Geophysical Union published a report to guide policy makers charged with rebuilding areas affected by Hurricanes Katrina and Rita, addressing current understanding of the phenomenon, near-term scientific needs, and longer-term directions. (American Geophysical Union press release) More

Thawing Permafrost a Significant Source of Carbon
June 15 — Permafrost isn�t staying frozen and a type of soil called loess, contained deep within thawing permafrost, may be releasing significant amounts of carbon into the atmosphere, according to new research. (University of Alaska-Fairbanks press release) More

Chlorine May Contribute to Formation of Ozone Pollution
June 13 — Standard methods of predicting air pollution don't take atmospheric chlorine into account, but the chemical could be responsible for 10 percent or more of daily ozone production in local air, research has found. (University of California-Irvine press release) More

New Satellite Set to Collect Most-Detailed Data Yet About Atmospheric Particles
June 12 — A new satellite that has begun gathering data from the Earth's atmosphere could be a key tool in unraveling just how much effect the reflectivity of clouds and tiny particles called aerosols are having on the planet's changing climate. (University of Washington press release) More

New Study Shows Much of the World Emerged from Last Ice Age Together
June 8 — The timing of glacier retreat around the world shows the Earth warmed in a synchronous manner at the same time carbon dioxide levels were rising at the end of the last Ice Age 17,500 years ago. (Earth Institute at Columbia University press release) More

Study Shows Our Ancestors Survived "Snowball Earth"
June 6 — Research shows organisms called eukaryotes, ancestors of the animal and plant species of today, existed 50 million to 100 million years before an Ice Age that created a "Snowball Earth" some 2.3 billion years ago. (University of Washington press release) More

Same Species Responds Differently To Same Warming
June 5 — A study finds that by 2100 the body temperatures of California mussels -- found along thousands of miles of coast in the northeast Pacific Ocean -- could increase between 2 and 6.5 degrees Fahrenheit depending on where they live. (University of Washington press release) More

Acid Rain is Causing Loss of Valuable Northeast Sugar Maples, Researchers Warn
June 1 — Acid rain created by burning fossil fuels has altered soils and has caused fewer sugar maples to grow in the Northeast, according to a new study. (Cornell University press release) More

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