Friday, May 10, 2013

Featured by NOAA, a member of the U.S. Global Change Research Program

On May 9, 2013, the daily mean concentration of carbon dioxide in the atmosphere surpassed 400 parts per million (ppm) for the first time since measurements began in 1958 at Mauna Loa Observatory in Hawaii.

Before the Industrial Revolution in the 19th century, global average CO2 was about 280 ppm. During the last 800,000 years, CO2 fluctuated between about 180 ppm during ice ages and 280 ppm during interglacial warm periods. Today’s rate of increase is more than 100 times faster than the increase that occurred when the last ice age ended.

Thursday, May 9, 2013

Posted by Tom Armstrong, Executive Director, U.S. Global Change Research Program

Today, in conjunction with a series of landmark steps announced by the Obama Administration to unleash troves of useful data from the vaults of government, the interagency US Global Change Research Program (USGCRP) launched a new online tool that promises to accelerate research relating to climate change and human health—the Metadata Access Tool for Climate and Health, or “MATCH.”

Monday, May 7, 2013

Featured by EPA a member of the U.S. Global Change Research Program

A recent EPA report, referred to as the 20 Watersheds Report, combines climate change models and watershed simulations to develop a better understanding of what changes to streams and rivers we might expect over the next several decades.

Read more about how EPA researchers are using climate models and watershed simulations to better understand how climate change will affect streams and rivers on the It All Starts with Science blog.