Climate scientist Michael MacCracken explores some of the scientific, legal, and ethical implications of "geo-engineering" options that have been proposed by some people to address global climate change.

Carbon dioxide is everywhere: in the air, rising from cracks in the ocean floor, and in your soda can. Now it's showing up in the news! Find out why carbon dioxide is such a hot topic, and why it's going to be around for a long, long time.

From Sept. 8-11, the National Association of State Energy Officials will hold its Annual Meeting at the Hilton DeSoto in Savannah, Georgia.

In this activity students make biodiesel from waste vegetable oil and develop a presentation based on their lab experience. Parts of the activity include creation of bio-diesel from clean vegetable oil, creation of bio-diesel from waste vegetable oil, chemical analysis of biodiesel, purification of biodiesel, and creation of soap from glycerin.

Climate Change 2014: Mitigation of Climate Change

On April 15 in Berlin, Germany, the Intergovernmental Panel on Climate Change approved and released Working Group III's Fifth Assessment Report - a comprehensive assessment of all relevant options for mitigating climate change through limiting or preventing greenhouse gas emissions, as well as activities that remove them from the atmosphere.

In this interactive, students can investigate a typical hydrogen fuel cell prototype car from its fuel cell stacks to its ultracapacitor, a kind of supplementary power source.

The limited-production vehicle seen in this feature is a Honda 2005 FCX, which is typical of the kinds of hydrogen fuel cell cars that some major automakers are now researching and developing.

U.S. Submits 2014 Climate Action Report to UNFCCC

The U.S. Department of State has submitted its 2014 Climate Action Report to the United Nations Framework Convention on Climate Change (UNFCCC). The report details actions the United States is taking domestically and internationally to mitigate, adapt to, and assist others in addressing climate change.

U.S. Energy Sector Vulnerabilities to Climate Change and Extreme Weather

The U.S. Department of Energy released this report in July 2013 as part of the President's efforts to support planning for climate change & U.S. energy security.  The report examines current and potential climate-related impacts on the energy sector and identifies activities to address these challenges.

The President's Climate Action Plan

In a speech at Georgetown University on June 25, President Obama announced a series of executive actions to reduce carbon pollution, prepare the United States for the impacts of climate change, and lead international efforts to address global climate change.

Southwest Climate Change Network

The Southwest Climate Change Network is a virtual community for scientists, other experts, decision makers, and the public to share information on climate change and collaborate on solutions. The site provides static and dynamic content and encourages readers to engage with each other and the scientists behind the site and ask questions about what matters to them when it comes to climate in the Southwest.

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