Just like with any other things anyone has ever done - it may seem complicated only when you lack experience and have a very vague idea of what exactly you should do.
But regardless of where you find a potential source for your climate change research, you should evaluate them by the following two criteria before you even begin to read them: We realize that the criteria that we have given will exclude almost every website on the Internet.
Just like most other college assignments, an essay on global warming is not about presenting 100% new information.
Quite the contrary, there are several most popular kinds of global warming essay with different goals, approaches, and requirements.
This is why Wikipedia cannot be considered a reliable source itself.
However, the reference sections of Wikipedia articles are always an excellent place to look for references for your own essay.