The National Climate Assessment (NCA) is required by the Global Change Research Act of 1990 and is a major product of the US Global Change Research Program. It is an important resource for understanding and communicating climate change science and impacts in the United States. It informs the national about already-observed changes, the current status of the climate, and anticipated trends for the future. The NCA report process integrates scientific information from multiple sources and sectors to highlight key findings and significant gaps in our knowledge. The NCA is also establishing consistent methods for evaluating climate impacts in the US in the context of broader global change. Finally, findings from the NCA provide input to federal science priorities and are used by US citizens, communities, and businesses as they create more sustainable and environmentally sound plans for the nation's future.
The Third NCA Report and the process underlying its assembly sets the stage for more comprehensive assessments and a sustained assessment process. It is envisioned as an ongoing effort, rather than a periodic report-writing activity, and will focus considerable attention on building long-term partnerships with organizations in both the public and private sectors and on establishing a strong stakeholder engagement process throughout the development, production, and release of NCA products.
More information about the National Climate Assessment is available from the NCA website, http://globalchange.gov/what-we-do/assessment.html.