Why is the study of global warming complicated?

Answer 1

Well, for one, there is a lot of controversy over this topic. Many think global warming is produced by cars, trains, etc. Others think it is just the climate changes that cause global warming. Others think there is none at all. Here is the silly thing. Scientists presently are saying that global warming is a problem. However, a little less than a century ago, scientists were scared that an ice age would end the world. That is probably why it is complicated, because there are so many viewpoints. Hope this helps