Thanks so much for all your earth day tips...we hope you're actually using them! It might seem like we don't have anything to worry about yet, but we do. There are massive climate changes happening all over the world and the consequences will be huge. If we all try and do our best, then we can slow it down. Check out these polar bears...did you know that they're finding it harder and harder to find food for their babies because the ice that they sit on is melting from global warming?