"Lawrence Jenkins" wrote in message
...
So its a linear process doubling co2 twice the effect.
Is it not an *exponential* process, beyond a certain point at least.
You reach a certain level, a 'tipping point' if you like and you get
runaway warming.
--
Col
Bolton, Lancashire
160m asl
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http://www.youtube.com/channel/UC3QvmL4UWBmHFMKWiwYm_gg