The Forum > Article Comments > On ‘belief’ and ‘denial’ > Comments
On ‘belief’ and ‘denial’ : Comments
By Don Aitkin, published 27/12/2012Further, the doomsayers accuse old-fashioned empiricists like me of being 'deniers' or 'denialists' because we do not accept their faith.
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Posted by mhaze
I'd became a card-carrying member of warmism, a spruiker of CO2 taxes if:
* we had rapid warming of approx 1c over the next decade or two
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The current rate of warming is around 0.2 deg C per decade a rate of warming of 1 deg C per decade would be truly catastrophic. The hope is that we can keep global warming down to just 2 deg C by the end of this century but this will require us to reduce our GHG emissions dramatically in the future.
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by mhaze
* we saw evidence that the postulated positive feedbacks are indeed positive and exist outside the models and that they overwhelm negative feedbacks
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The Arctic is melting at a rapid rate which has increased dramatically since the 1990s
10,000 plus glaciers are melting and in rapid retreat.
The high latitudes are warming much faster than elsewhere
Overnight temperatures have risen faster than than daily maximums.
The sea level is rising and shows signs of accelerating.
The top 700 meters of the ocean is accumulating heat and surface sea surface temperatures are rising.
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by mhaze
* we saw evidence that models are able to simulate cloud movement/formation and still predict a warming
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Next time we have a cloudy night tell me did the temperature drop quicker or slower than on clear night and explain why.
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By mhaze
* we saw evidence that models were able to replicate past climate changes
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There is a good match between the models and the real climate only if we include the effects of GHGs.
http://www.realclimate.org/images/model10.jpg