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Global warming isn't as huge of a temperature change as some of you may be thinking. There is the potential threat of rise in temperature over the next century being around 4°C! That may not seem like a lot at first, its less than a degree every few years to the overall average of the world temperature. But... thats A LOT, especially for other animals on the planet. This would cause massive extinctions and would hurt ecosystems around the world that would end up hurting people quite a bit. Its important to at least look at the subject seriously for our children.