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USGS global change research

Fact Sheet 162-95

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Abstract

The Earth's global environment--its interrelated climate, land, oceans, fresh water, atmospheric and ecological systems-has changed continually throughout Earth history. Human activities are having ever-increasing effects on these systems. Sustaining our environment as population and demands for resources increase requires a sound understanding of the causes and cycles of natural change and the effects of human activities on the Earth's environmental systems.


The U.S. Global Change Research Program was authorized by Congress in 1989 to provide the scientific understanding necessary to develop national and international policies concerning global environmental issues, particularly global climate change. The program addresses questions such as: what factors determine global climate; have humans already begun to change the global climate; will the climate of the future be very different; what will be the effects of climate change; and how much confidence do we have in our predictions? Through understanding, we can improve our capability to predict change, reduce the adverse effects of human activities, and plan strategies for adapting to natural and human-induced environmental change.

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Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
USGS global change research
Series title:
Fact Sheet
Series number:
162-95
Year Published:
1995
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Description:
2 p.