R45086Environmental Policy

Evolving Assessments of Human and Natural Contributions to Climate Change

Federal & State Law Editorial TeamLast reviewed: July 2026

February 1, 2018

Summary

This CRS report provides context for the Administration’s Climate Science Special Report (October 2017) by tracing the evolution of scientific understanding and confidence regarding the drivers of recent global climate change.

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Note: CRS reports are prepared for Members of Congress and their staffs. This summary is provided for informational purposes and does not constitute legal advice.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.