[SustainableTompkins] Avoiding the GHG tipping point (bosak at ibiblio.org)

[John Miller]

Jon,
In such a complex and changing area (cloud cover changes, algae blooms,
etc), I think you are best to use a pretty broad range- I certainly
wouldn't buy a precise number.  Using what has already been submitted in
these notes, I think you can pull out something like "if we stop at
current levels of human contribution to greenhouse gases, then we will
have to reduce our consumption of fossil fuels by 40-80% by 2050"   40%
is still a huge number and 80% may be correct and indicates the
difficulty of the challenge.

I'll be on the look out for more references. We learn more every day.

John


Thanks.  This is interesting, but still doesn't give me the sound bite
I'm looking for: "To avert irreversible climate change, we will have to
reduce our consumption of fossil fuels by X percent."  I need X.

Jon

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