The vast majority of scientists who are experts in the field, all across the globe, all looking at the data, providing their evidence to each other to either challenge or support, all agreeing on what's happening.
It's not being a sheep to look at this and realize that what that group is saying is probably right and that you, as a layman, should probably accept what they are saying. That's actually the opposite of being a sheep, it's being objective and reasonable.