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EDIT: I find it extremely ignorant that people believe conditions on earth will significantly deteriorate in the next century. Earth has been around for 4.6 billion years. It's appealing to say that humans are destroying the Earth, but it also incredibly arrogant. We have been a a flicker in the bigger picture. Disease or weaponry will kill us long before climate change does.

That doesn't mean I don't enjoy this timeline!

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Timewise, we have been a flicker. But nothing else in Earth's history has become industrialized like humans have in the past ~100 years.

You can't say that a handful of volcanoes and dinosaur farts 70 million years ago is anything close to the CO2 we put out every day from 7 billion people, billions of cars, millions of factories, etc etc.

Too be honest. I just don't know that industrial carbon emissions rival those of a super-volcanoes or that of an apocalyptic asteroid slamming into Earth. 100 years isn't a lot of time to measure our affect on the grander scheme. Not saying our recent environmental efforts are for naught, but I do believe that when all is said and done and humans are extinct, our impact on Earth will have been negligible.

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