We’re halfway through the two weeks of the climate change negotiations here in Paris, and one contentious part of the draft text being negotiated is Article 3.1, entitled “Collective Long-Term Goal.” This will be a fundamental to the Paris Agreement, because it will establish what the nations of the world agree to be their ultimate objective in terms of global warming. Will it be to limit it to 1.5 degrees Celsius above the pre-industrial average, or 2 degrees, or—God forbid—no limit at all?
December 8, 2015 9:33 AM EDT
November 30, 2015 9:36 AM EDT
Shortly before I arrived here in Paris for the climate negotiations, Brazil’s National Institute for Space Research released the annual figure on Amazon deforestation for 2014–2015. This number comes out each year about this time, and is eagerly awaited as a sign of whether the dramatic progress that Brazil made over the past decade in reducing deforestation by three-fourths, is continuing.
November 23, 2015 12:41 PM EDT
The Department of Commerce and the National Oceanic and Atmospheric Administration continue to resist attempts by House Science Committee Chairman Lamar Smith to discredit a scientific study of global surface temperature published by NOAA scientists last June. As a former NOAA scientist and administrator, I have never been so proud of the agency for standing up for its scientists and scientific integrity. Read more >
October 13, 2015 3:46 PM EDT
Two-thirds of U.S. states may be at risk of relying too heavily on natural gas to meet electricity demand, according to a new analysis from the Union of Concerned Scientists. Why, might you ask, is California, a national and global leader in the move to clean energy, included in that mix of at-risk states? Read more >
September 22, 2015 4:18 PM EDT
In the last few years, there has been heartening news, based on new scientific data, about progress in reducing global deforestation. The IPCC, in its Fifth Assessment Report in 2014, reviewed all the previously published evidence and concluded that deforestation and the emissions of global warming pollution that it produces had dropped in recent years. The Global Carbon Project, an annual review of the planet’s carbon cycle and its implications for climate change, found the same trend in its 2014 assessment. Read more >