human
I've been hearing a lot of news lately about global warming. What is it all about?
assistant
Global warming is the long-term increase in the average temperature of the Earth's atmosphere and oceans due to human activities that release greenhouse gases such as carbon dioxide, methane, and nitrous oxide into the atmosphere. This causes more heat to be trapped in the Earth's atmosphere and oceans, which can lead to rising sea levels, extreme weather events, melting ice caps, and other changes in our climate system.