Global warming is causing glaciers and the Himalayan glaciers to melt, which could impact 40% of the world's population who rely on seasonal water flows. It is also leading to more extreme weather events like floods and droughts as well as emerging and reemerging infectious diseases. While overpopulation and certain technologies contribute to global warming, renewable energy sources like solar and wind power can help reduce emissions and mitigate the effects of climate change if adopted more widely.