Global warming is defined as an increase in the average temperature of the Earth's atmosphere due to an increase in greenhouse gases like carbon dioxide and methane. This is trapping more heat in the lower atmosphere and enhancing the greenhouse effect. The impacts of global warming include more extreme weather events like floods and droughts globally. For India, global warming is already resulting in rising temperatures, changing rainfall patterns, and more frequent extreme weather events that are damaging its economy and society. Key impacts include threats to health, water resources, agriculture, forests and coastal areas.