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Highlights

Since 1989, the U.S. Global Change Research Program (USGCRP) has submitted annual reports to Congress called Our Changing Planet. The reports describe the status of USGCRP research activities, provide progress updates, and document recent accomplishments.

In particular, Our Changing Planet highlights progress and accomplishments in interagency activities. These highlights represent the broad spectrum of USGCRP activities that extend from Earth system observations, modeling, and fundamental research through synthesis and assessment, decision support, education, and public engagement.

Observations, Carbon Cycle

Measuring the Largest Methane Leak in U.S. History

On  February 11, 2016, workers in California ended the largest reported natural gas leak in U.S. history. The Aliso Canyon leak released methane and other gases into the atmosphere from an underground-storage facility for over three months, causing the evacuation of more than 5,000 households. Researchers from NOAA, NASA, Scientific Aviation, the University of California, the National Institute of Standards and Technology (NIST), the California Air Resources Board, and South Coast Air Quality Management District mobilized rapidly to assess the environmental impacts of the leak,...

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