Climate change is real. Here's what NASA, EPA, others have reported.

AI-assisted summary

The planet's average surface temperature has risen about 2 degrees Fahrenheit, largely due to human activities.

Climate change is increasing the frequency and intensity of extreme weather events like heat waves, droughts and wildfires.

Scientific evidence for climate change includes rising global temperatures, melting ice sheets and rising sea levels.

Earth’s climate has changed throughout history; the current warming is happening at a rate not seen in the past 10,000 years, experts say.

Information gathered by scientists from sources such as ice cores, rocks, and tree rings shows signs of a changing climate, according to the National Aeronautics and Space Administration. From global temperature rise to melting ice sheets, the evidence of a warming planet is clear.