For the most part, the facts are referenced with an appropriate, reliable reference.

I checked a few citations and the links do work. I think Wikipedia is a nice place to get an overall summary of the basics for a certain topic and to also get started by exposing you to the scientific world by providing reliable sources.

I think Climate Change is a semi-protected article because it's a topic that is more scientific-based, so it's important that someone who is editing the page is actually knowledgeable on the topic and isn't just making random edits and is biased on the topic.