USGS Release: Large Trees Declining in Yosemite

“Although this study did not investigate the causes of decline, climate change is a likely contributor to these events and should be taken into consideration,” said USGS scientist emeritus Jan van Wagtendonk

[Would a new federal hamburger tax improve the weather?] - Gut Check: Here's the Meat of the Problem - washingtonpost.com

The debate over climate change has reached a rarefied level of policy abstraction in recent months. Carbon tax or cap-and-trade? Upstream or downstream? Should we auction permits? Head-scratching is, at this point, permitted. But at base, these policies aim to do a simple thing, in a simple way: persuade us to undertake fewer activities that are bad for the atmosphere by making those activities more expensive. Driving an SUV would become pricier. So would heating a giant house with coal and buying electricity from an inefficient power plant. But there's one activity that's not on the list and should be: eating a hamburger.

China says rich nation CO2 cuts key to Copenhagen | Reuters

BEIJING (Reuters) - Rich nations must agree to large, measurable cuts in their greenhouse gas emissions, if the world is to set a framework to tackle global warming at U.N.-led talks in December, a senior Chinese official said Wednesday.