Off-Topic: Fact or Fiction???
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Name:
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GoneFishin
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Subject:
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Fact or Fiction???
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Date:
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5/13/2019 9:36:22 AM
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Never realized they did measurements 800,000 years ago.
"Just how bad is our greenhouse gas problem right now? There's more carbon dioxide in the atmosphere today than at any point since the evolution of humans. That shocking bit of news comes from data from the Mauna Loa Observatory in Hawaii. It says the concentration of CO2 in the atmosphere is over 415 parts per million. That's higher than at any point in the last 800,000 years, since before the evolution of homo sapiens. Elevated carbon dioxide levels prevent the Earth's natural cooling cycle from working, trapping heat near the surface and causing global temperatures to rise."
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