The Holocene period, which we live in, began about 12,000 years ago and began human domination of the planet, specifically because seasons became predictable and allowed for farming, more food, more people. We are not causing global warming but are probably adding to it. The Holocene began without human interference and will probably end without it. No one knows how long it will continue before the next major climate change. Live it up while you can. I would be more concerned with the crazies that have nuclear bombs that can wipe us off the face of the planet first.
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