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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Land Shark who wrote (1023668)	7/5/2017 10:38:09 AM
From: James Seagrove	4 Recommendations Recommended By FJB locogringo majaman1978 Mick Mørmøny Read Replies (1) \| Respond to of 1576881

Why don't you move 100% back home or Cuba.

To: Land Shark who wrote (1023668)	7/5/2017 10:40:49 AM
From: Wharf Rat	Respond to of 1576881

"Poo pooing Hawkings scenario is not helpful." You gotta call out bullshit. Dude doesn't know WTF he's talking about. Can Increased Atmospheric CO2 Levels Trigger a Runaway Greenhouse? Article · July 2014 with 175 Reads DOI: 10.1089/ast.2014.1153 · Source: PubMed 1st Ramses Mario Ramirez 23.04 · Cornell University 2nd Ravi Kumar Kopparapu 3rd Valerie Lindner 4th James F Kasting 44.38 · Pennsylvania State University Abstract Abstract Recent one-dimensional (globally averaged) climate model calculations by Goldblatt et al. (2013) suggest that increased atmospheric CO2 could conceivably trigger a runaway greenhouse on present Earth if CO2 concentrations were approximately 100 times higher than they are today. The new prediction runs contrary to previous calculations by Kasting and Ackerman (1986), which indicated that CO2 increases could not trigger a runaway, even at Venus-like CO2 concentrations. Goldblatt et al. argued that this different behavior is a consequence of updated absorption coefficients for H2O that make a runaway more likely. Here, we use a 1-D climate model with similar, up-to-date absorption coefficients, but employ a different methodology, to show that the older result is probably still valid, although our model nearly runs away at ~12 preindustrial atmospheric levels of CO2 when we use the most alarmist assumptions possible. However, we argue that Earth's real climate is probably stable given more realistic assumptions, although 3-D climate models will be required to verify this result. Potential CO2 increases from fossil fuel burning are somewhat smaller than this, 10-fold or less, but such increases could still cause sufficient warming to make much of the planet uninhabitable by humans. Key Words: Planetary atmospheres-Habitability-Carbon dioxide-Environment. Astrobiology 14, xxx-xxx. Can Increased Atmospheric CO2 Levels Trigger a Runaway Greenhouse? (PDF Download Available). Available from: researchgate.net [accessed Jul 5, 2017].