Earth has been both warmer and colder. It goes through these cycles on its own due to various reasons including astronomical reasons.
Earth has been both warmer and colder. It goes through these cycles on its own due to various reasons including astronomical reasons.
Thanks for the videos. I liked the second one more. It has more questions than certainties, and I agree with the conclusion: we have no idea why this happens at this speed. We can blame human activity all we want, and it may have some influence, but it seems there are other contributing factors we aren't exactly sure where they come from or where they will lead to.