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Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: Thomas A Watson who wrote (10332)	3/11/2007 11:50:11 PM
From: Wharf Rat	Read Replies (1) \| Respond to of 36917

Fact: Water vapor is by far the largest greenhouse factor. Yes, indeed. It's called a feedback gas. Temperature dependent. Water vapour: feedback or forcing? Filed under: Climate Science Greenhouse gases Climate modelling FAQ— gavin @ 7:51 pm Whenever three or more contrarians are gathered together, one will inevitably claim that water vapour is being unjustly neglected by 'IPCC' scientists. "Why isn't water vapour acknowledged as a greenhouse gas?", "Why does anyone even care about the other greenhouse gases since water vapour is 98% of the effect?", "Why isn't water vapour included in climate models?", "Why isn't included on the forcings bar charts?" etc. Any mainstream scientist present will trot out the standard response that water vapour is indeed an important greenhouse gas, it is included in all climate models, but it is a feedback and not a forcing. From personal experience, I am aware that these distinctions are not clear to many, and so here is a more in-depth response (see also this other attempt). realclimate.org

To: Thomas A Watson who wrote (10332)	3/12/2007 4:55:46 AM
From: maceng2	Read Replies (2) \| Respond to of 36917

It's my belief that it would not take much of an upset in climate to threaten the worlds production of food to support the current human population. Therefore it is most important that money and effort is spent on the study of the Earths climate and our effect on it. Perhaps more money should be spent on climate studies then on the war in Iraq (for example) as the threat is much larger in scope. Both the GLOBAL DIMMING and GLOBAL WARMING component of human activity should be considered in any effect upon the planets climate. Any effect should be measured with it's relevance to overall effect of other natural factors wrt climate change. By way of illustration, the data in these graphs need to be considered. (Note: in several cases todays date is on the left of the chart rather then the right hand side) en.wikipedia.org