human
I've been hearing a lot about global warming lately, but I'm not sure what it means.
assistant
Global warming is the long-term trend of increasing average temperatures on Earth due to the greenhouse effect caused by human activities such as burning fossil fuels and deforestation. The effects of global warming include rising sea levels, melting ice caps, changes in precipitation patterns, droughts, floods, heat waves, and more frequent extreme weather events like hurricanes, tornadoes, and wildfires.