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Politics : Mainstream Politics and Economics -- Ignore unavailable to you. Want to Upgrade?

To: Bread Upon The Water who wrote (1980)	9/15/2011 9:19:32 AM
From: Brumar89	2 Recommendations Read Replies (1) \| Respond to of 85487

What's interesting is if you parse the words carefully, you'll see that ecologist is actually admitting there are important climate feedbacks not accounted for in current climate models: JH: Yes. There are many of us in the scientific community who believe that any number of important feedback processes are not being accounted for in the current IPCC projections. For example, from ice core data informing us about temperatures and atmospheric greenhouse gas levels over the past million years, we know that when the planet warms a little from any cause, it responds by releasing from the land and sea to the atmosphere huge amounts of carbon dioxide and methane. These greenhouse gases contribute to further warming. Because this process is not reflected in current climate projections, we can expect that there will be further emissions from our soils and our oceans. These will create additional warming beyond what IPCC currently projects. MT: The evidence is solid? JH: Yes. The evidence for these additional feedback effects is starting to pour in. Rising methane emissions from warming tundra soils and waters are being observed, and field research shows that warmed temperate ecosystems release additional carbon dioxide to the atmosphere. The thing is he's toeing the establishment line in implying all of these unaccounted feedbacks will make climate change worse. Those are the only feedbacks researchers are interested in ... the good climate scientists who support CAGW that is, not the minority, the bad scientists, who look at the other kind of feedback effects and get slandered by the Shoguns and Popes of global warming. Climate feedbacks are a vitally important part of the CAGW theory. Everyone admits the direct warming effect from more CO2 is limited. CO2 is a minor trace gas (though vital for life) and the amount it can raise climate on its own is small. Current models assume a very significant positive feedback mostly from more water vapor (the primary greenhouse gas) in the atmosphere though without creating more clouds which would create a negative feedback on temperature. What you're being told is okay, the science is settled even though we don't really know all the important feedback effects because we just know they're all just going to make things worse. That just isn't true.