aaas 2012 Archives - State of the Planet

Fixing Climate: Beyond Carbon Dioxide

Climate scientists at a meeting of the American Association for the Advancement of Science this week were elated to hear that the United States and five other countries had agreed to work toward cutting pollutants other than carbon dioxide thought to cause about a third of current human-influenced global warming. After all, many of them… read more

by |February 21, 2012

A Climate Tipping Point for World Food Prices?

Increased growing-season heat due to climate change in coming decades could push staple U.S. crops off a cliff, and cause world food prices to jump, a Columbia University economist told a press briefing at a top scientific meeting this week. In a panel organized by the American Association for the Advancement of Science, economist Wolfram… read more

by |February 20, 2012

Can Intensive Farming Save Tropical Forests?

With 7 billion people on the planet and some 40 percent of earth’s land surface already covered with croplands and pastures, the only remaining frontiers for agricultural expansion are dwindling tropical forests. Some see high-yield industrial-scale farming as a way to take the pressure off; the theory goes that if more produce can be grown… read more

by |February 18, 2012

Did the Oceans Influence Human Evolution?

Scientists often invoke climate as a possible factor in human evolution; but only recently have they developed the ability to get enough information about past climates and related fossil evidence to see any details. A half-dozen leading paleontologists and climate scientists discussed recent advances in a symposium this week at the annual meeting of the… read more

by |February 17, 2012

Global Climate Modeling for the Masses: You Can Try This at Home

Since 2005, the Educational Global Climate Modeling Project has been downloaded 50,000 times, and adopted for teaching and research at hundreds of universities and other institutions.

by |February 17, 2012

AAAS Annual Meeting: Talks From the Earth Institute, Feb. 16-20

Scientists at Columbia University’s Earth Institute will present important new work on global climate, air pollution, agriculture and other issues at the Feb. 16-20 meeting of the American Association for the Advancement of Science, in Vancouver, B.C. Click hyperlinks for scientist contacts and other information. Background materials will be posted just before the meeting at… read more

by |February 8, 2012