human
I've been hearing a lot about global warming lately, but I'm not sure what it means.
assistant
Global warming is the gradual increase in Earth's average surface temperature due to human activities that release greenhouse gases into the atmosphere. It is caused by the burning of fossil fuels and deforestation, which traps heat from the sun within the atmosphere. As this trapped heat increases, the planet warms, resulting in rising sea levels, changes in weather patterns, melting ice caps, and more extreme weather events.