How do we know we can trust the historical surface temperature record? Did global warming stop in 1998? What actions can businesses or individuals take to reduce climate chagne from greenhouse gas emissions? Get asnwers to these and other frequently asked questions.

Climate Engineering

Climate engineering, aka geoengineering, refers to large-scale manipulation of Earth's climate intended to counteract human-caused climate change.  This fact sheet explains the basic science of, but does not endorse, climate engineering.  


It is virtually certain our world will continue to warm over this century and beyond. The exact amount of warming that will occur in the coming century depends largely on the energy choices that we make now and in the next few decades.

We can have record-setting blizzards and global warming at the same time. NOAA scientists explain climate variability, how it influenced our weather this winter, and how it differs from climate change.

 The Sun is the main source of power for the Earth's climate machine. Space-based measurements, begun in 1978, indicate Earth receives an average of 1,361 W/m<sup>2</sup> of incoming sunlight, and the amount varies by about one-tenth of a percent over the course of the 11-year solar cycle. 

Map of sea surface temperatures in the Pacific, January 2016's El Niño page's new ENSO page provides information on the current status of El Niño and La Niña, plus links to forecasts, maps, and videos from across NOAA that help explain the impacts of the El Niño-Southern Oscillation on the U.S.

Climate Change 2013: The Physical Science Basis

On September 27, 2013, Working Group I of the Intergovernmental Panel on Climate Change (IPCC) presented its report to member governments for approval and acceptance. The report is the first of four that will make up the IPCC's 5th Assessment.

Reducing the Nation's Vulnerability to Extreme Weather & Climate

NOAA is helping people prepare and protect their homes, communities, and businesses from extreme climate- and weather-related impacts.