Although it is natural, too many greenhouse gases can have a negative impact on our planet. For example, in the Arctic, the ice is melting at a concerning rate due to the earth getting warmer. Unfortunately, it's being caused by us. Humans increased the greenhouse gas rate to about 90% in 1970. This is very concerning, plus, the arctic plays an important role on keeping this planet livable. Without it, temperatures would rise even more and we'd all be unable to live on Earth. Hopefully, soon we'll be able to reduce our greenhouse gas emissions on this planet and keep life going for future generations.