Green Car Congress

DECEMBER 23, 2012

The Colorado River Basin encompasses much of the American West, covering parts of seven US states and two states in Mexico. The study expands on findings published in 2007 in the journal Science that the American Southwest is becoming more arid as temperatures rise and rainfall patterns shift. —Richard Seager, lead author.

Colorado 247

Colorado Las Vegas Climate Change Los Angeles 247

Green Car Congress

MAY 28, 2009

An understanding of the rate of carbon release is necessary to estimate the strength of positive feedback to climate change, a likely consequence of permafrost thaw. It was conducted by scientists at NCAR, the University of Colorado at Boulder, and Florida State University. Geophysical Research Letters.

Climate Change 150

Climate Change Water Climate North America 150

Green Car Congress

SEPTEMBER 27, 2009

Unusually high temperatures in the Arctic and heavy rains in the tropics likely drove a global increase in atmospheric methane in 2007 and 2008 after a decade of near-zero growth, according to a new study. Starting in mid-2007, scientists noticed La Niña conditions beginning, waning and then intensifying in early 2008. Earlier post.)

2007 230

2007 Brazil 2008 Indonesia 230

Green Car Congress

NOVEMBER 29, 2009

However, the slow pace of negotiations spurred UNFCCC delegates to publish a “roadmap to Copenhagen” in December 2007 at the 13 th Congress in Bali, in an effort to accelerate the progress of those negotiations. Climate Change And The IPCC Fourth Assessment Report. by Jack Rosebro.

Climate 236

Climate Climate Change 2009 Emissions 236

Green Car Congress

OCTOBER 7, 2009

Despite a slight recovery in summer Arctic sea ice in 2009 from record-setting low years in 2007 and 2008, the sea ice extent remains significantly below previous years and remains on a trend leading toward ice-free Arctic summers, according to the University of Colorado at Boulder’s National Snow and Ice Data Center. Earlier post.).

2009 150

2009 2008 2007 Colorado 150

Green Car Congress

DECEMBER 4, 2009

Left side: 1970-2007 trend in annual surface air temperature. Our work shows the importance of the role of natural climate variability in temporarily masking or enhancing human-induced climate change. A paper on the study will be published 8 December in the journal Geophysical Research Letters. Credit: NOAA.

2008 170

2008 Climate Change Climate North America 170

Green Car Congress

MARCH 1, 2009

Barnett and Pierce used what they consider conservative metrics, assuming that the effects of climate change on the Colorado Basin began in 2007, and using only the last 100 years of riverflow. We were stunned at the magnitude of the problem and how fast it was coming at us ,” said Barnett. Barnett, T.

California 199

California Los Angeles Water Climate Change 199