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great articles continue to stream in to this friendfeed room

Article investigating the current state of LED lighting solutions. Studies suggest that a complete conversion to the lights could decrease carbon dioxide emissions from electric power use for lighting by up to 50 percent in just over 20 years; in the United States, lighting accounts for about 6 percent of all energy use. A recent report by McKinsey & Company cited conversion to LED lighting as potentially the most cost effective of a number of simple approaches to tackling global warming using existing technology.

To coincide with today's open source publication of Akvo's video strategy, Vinay Gupta argues that "the collision of the internet and the poor is clearly a major turning point in human history, in which we are players".

Two prominent - and iconoclastic - environmentalists argue that current efforts to tax or cap carbon emissions are doomed to failure and that the answer lies not in making dirty energy expensive but in making clean energy cheap.

Groups gear up to issue an emergency alert that carbon dioxide in the global atmosphere has already passed a tipping point. Writing From Sydney -- All around the world, national governments are trying to hammer out their global warming policies, preparing for the United Nations' climate-change conclave in Copenhagen at the end of the year. And in too many places, the effort seems to be going nowhere.

The Obama administration is expected to announce guidelines Tuesday that will toughen existing federal mileage standards. Automakers have signed off on the plan, sources say.

by Daniel J. Weiss, Daniel Wagener, Center for American Progress Action Fund

December 7-18 -- this is the big one, hopefully the next generation Kyoto Protocol is defined here.