We Eliminated Everything We Could Think Of, So It Has To Be Warming | Climate Skeptic

Perhaps this question is answered somewhere in the unreported details, but my first reaction was to want to ask “Dendroclimatologists like Michael Mann reconstruct history from tree rings based on the assumption that increasing temperatures correlates linearly and positively with tree growth and therefore tree ring width. Your study seems to indicate the correlation between tree growth and temperature is negative and probably non-linear. Can you reconcile these claims?’ Seriously, there may be an explanation (different kinds of trees?) but after plastering the hockey stick all over the media for 10 years, no one even thinks to ask?
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Again, I need to see the actual study, but this would not be the first time a climate study said “well, we investigated every cause we could think of, and none of them seemed to fit, so it must be global warming.” It’s a weird way to conduct science, assuming Co2 and warming are the default cause for every complex natural process. No direct causal relationship is needed with warming, all that is required is to eliminate any other possible causes. This means that the less well we understand any complex system, the more likely we are to determine changes in the system are somehow anthropogenic.

Year End Trend Comparison: Multi-Model Means 2001-2008 | The Blackboard

Things are looking grim for the models– at least based on 2001-2008. But bear in mind..

Climate Progress » Blog Archive » Science: Global warming is killing U.S. trees, a dangerous carbon-cycle feedback

Contrary to the popular notion that increases in carbon dioxide emissions increase vegetation, a “stunningly important paper,” in Science finds the reverse has been true.

Who's Afraid of CO2?

CO2 is essential to photosynthesis, the process by which plants use sunlight to produce carbohydrates - the material of which their roots and body consist. Increasing CO2 levels speeds the time in which plants mature and improves their growth efficiency and water use. Botanists have long realized that CO2 enhances plant growth, which is why they pump CO2 into greenhouses.