CNN: Sure, there are plenty of reasons to be terrified about the future of the planet: melting ice sheets, intensifying heat waves, vanishing rainforests, falling temperature records, dying elephants, bleached out coral and kids in China don't know the sky is blue.
This stuff is serious. It's real. It's bad. But -- know what? -- it's not the full picture.In celebration of Earth Day, a day on which more than 155 countries are planning to sign a landmark U.N. agreement on climate change, here are five...