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.