Helping Understanding Changing Climate

The images are drawn from the USGS long-term library for environmental assessment and analysis in support of climate-related science.

It reportedly is the largest release of information derived from classified material since the declassification of "corona" satellite images during the Clinton Administration.

The Global Fiducials Library maintains collections of images for select environmentally sensitive sites to support current and future researchers and policy makers in identifying and understanding long-term environmental trends and processes.