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Question about climate change for the knowledgeable. I see the science, but can't wrap my head around one thing.
If we're causing it, and it's such a new occurrence, how do you explain all of the variable temperatures years, hundreds, thousands, millions of years before? We've had massive heat waves worse than most in the early 1900s. We have had years and years long ice ages, heat ages that changed Earth's form, etc. Earth survived it all.
How do we know that it isn't just earth being earth now, given the history?
I guess the biggest clue is the graph below, do you see the spike in the C02 levels since 1950, this us undoubtedly us and our contribution through industrialization (Though I'm open to other theories). CO2 as you know is a greenhouse gas and what scientists found through satellite data was a drop in outgoing radiation at the wavelength bands that greenhouse gases absorb energy. The change in outgoing radiation is consistent with theoretical expectations.
* Let me know if this doesn't make sense