Human impact on the environment

The Climate Science Special Report (CSSR) is designed to be an authoritative assessment of the science of climate change, with a focus on the United States, to serve as the foundation for efforts to assess climate-related risks and inform decision-making about responses. In accordance with this purpose, it does not include an assessment of the literature on climate change mitigation, adaptation, economic valuation, or societal responses, nor does it include policy recommendations.