The sun is getting hotter over time. While the climate has always changed, it is now heating up much faster due to human activities that release greenhouse gases like carbon dioxide into the atmosphere. Greenhouse gases trap heat like glass in a greenhouse, causing the global warming trend that threatens to flood coastlines and cities, melt glaciers and ice sheets, and increase extreme weather events. Individual lifestyle changes like reducing energy consumption and emissions can help tackle climate change and protect the planet if adopted widely.