Graph of sunspot numbers from 1960-2018
October 29, 2020

Observations of sunspots and other indicators of solar activity indicate no changes that could have caused global warming over the past half century. 

Cartoon of a rollercoaster whose hills and descents follow the outline of global surface temperatures over the past 10,000 years
January 23, 2014

Today's global warming is happening at a much faster rate today it did in the warm periods between ice ages over the last million years.

Pattern in coral
January 23, 2014

NOAA is an agency that enriches life through science. From the surface of the sun to the bottom of the ocean, NOAA advances scientific understanding of Earth's environment, climate, and weather.

Passenger rail
October 29, 2020

There is great potential for the collective actions of many individuals worldwide to reduce global warming by making changes in their daily and annual activities that produce heat-trapping gases and aerosols.

Denver International Airport
January 23, 2014

Business leaders can evolve their business models to stay profitable while improving their energy efficiency, reducing their carbon emissions, and reducing their, and their climate-related risks.

Boat moved by Florence storm surge
October 29, 2020

Human-caused climate change is not the sole cause of any single extreme event. However, changes in the intensity or frequency of extremes may be influenced by human-caused climate change.

MSV Nordica
October 29, 2020

Yes, there will probably be some short-term and long-term positive benefits from global warming, but the negative costs and impacts of continued global warming are very likely to far outweigh the positive benefits over the course of this century.

2018 temperature anomaly map
October 29, 2020

Potential effects of global warming include sea level rise, more frequent and more extreme heat waves, intensification of wet and dry regional climate patterns.

Studying soot in snow
February 3, 2020

No. By a large majority, climate scientists agree that average global temperature today is warmer than in pre-industrial times, and that human activity is the primary contributing factor.

Lightning-sparked wildfire
October 29, 2020

Yes, there are, but the only new process on Earth that has been identified that can account for the significant tipping of Earth's carbon balance is human activity, including deforestation, biomass burning, cement production, and—especially—fossil-fuel emissions.