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2019-09-16: Could We Terraform Mars?
- 10:54: Variations are possible - like introducing “super” greenhouse gases like CFCs.
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2018-01-24: The End of the Habitable Zone
- 06:07: There are a few plausible scenarios that give the right levels of greenhouse gases.
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2017-03-01: The Treasures of Trappist-1
- 02:59: ... based on the intensity of its photon flux and the effect of atmospheric greenhouse gases. ...
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2016-05-25: Is an Ice Age Coming?
- 05:21: Isotope ratios and greenhouse gas content in those bubbles traces global climate over the past 420,000 years.
- 11:22: However, the recent increase in greenhouse gases is so large and so sudden that there's no precedent anywhere in the climate record.
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