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

To: RMF who wrote (932607)

4/30/2016 9:16:08 AM

From: Wharf Rat

Respond to of 1574350

"How can we differentiate what's happening now from those previous periods?"

The human fingerprint in global warming

skepticalscience.com

"You have to admit it's just a miniscule amount of CO2 in the atmosphere. "

CO2 makes up 390 ppm (0.039%)* of the atmosphere, how can such a small amount be important? Saying that CO2 is "only a trace gas" is like saying that arsenic is "only" a trace water contaminant. Small amounts of very active substances can cause large effects.

skepticalscience.com

Carbon Dioxide and the Greenhouse Effect

The Greenhouse Effect

The greenhouse effect is the process that keeps our planet warm. If it weren't for the greenhouse effect, Earth would be a frozen ball of snow, and totally uninhabitable. Without the greenhouse effect, (without CO2), Earth's average temperature would be around 0°F (-18°C). It is a process which makes life as we know it possible. Unfortunately, too much greenhouse gas in the atmosphere intensifies the greenhouse effect, and has led to the warming of the planet.

wunderground.com