Tag archives for 450 ppm

Climate Change Mitigation: Caught Between a Wedge and a Hard Place

Posted by Bill Chameides of Duke University on January 16, 2013
(2)
More »
The computer circa late 1960s. A lot has happened in computer technology since then. Could the next 40-50 years bring similar radical changes to the world’s energy infrastructure? (Photograph by cliff1066â„¢/Flickr)

New study concludes that addressing climate change will require “fundamental and disruptive transformation of the global energy system.”

The Heat Goes On: CO2 Reaches Another High-Water Mark

Posted by Bill Chameides of Duke University on May 2, 2012
(5)
More »

Our neighbor to the south plans to swim against the tide. The tide in question is the world’s rising emissions of carbon dioxide (CO2), and with the March 2012 data from the Mauna Loa Observatory now in, that tide has risen to new heights. At 394.45 parts per million, it is the highest monthly average…

Looking to the Climate-Change Road Less Traveled

Posted by Bill Chameides of Duke University on February 22, 2012
(4)
More »
Tropospheric ozone, a component of smog (shown here over Los Angeles), is one pollutant that is being targeted to help reduce global warming while we await policies to curb carbon dioxide emissions. (Photograph by photos_mweber/Flickr)

Congressional deadlock and new scientific insights force new direction. The news on the avoid-dangerous-climate-change front seems to get ever bleaker. On the Policy Side, Little to No Progress The probability of a U.S. policy to curb greenhouse gas emissions any time soon is as close to zero as you can get — President Obama said…