Planet Earth. It sure is beautiful, and it's also very unique and special, because under its thin atmosphere, it supports life. But there's a problem. Did you know that the Earth is sick? It has come down with a fever. In fact, the last ten years were the hottest ever recorded. This never-before-seen warming is part of something scientists call climate change. What could cause our whole planet to get sick? And what is climate, anyway? Have humans played a role in changing it? What’s bad about climate change, and how can we stop it from getting worse?
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