"Human activities, mostly the burning of fossil fuels, are changing the climate faster than ever. As the world gets hotter, scientists and policymakers have agreed to try everything they can to limit warming to 2C above pre-industrial levels. But even 2C of warming will greatly impact life on Earth. Earth.Org looks at what will happen when we hit this warming milestone, what changes we can expect in extreme weather events, climate patterns, sea levels and temperatures, and what it means for ecosystems and human activities..."