As the need to measure carbon absorption takes on global political and environmental import, researchers are rushing to resurrect a project that literally crashed and sank.
Scientists propose guardrails for how far mankind can push the planet tomorrow, while others examine how far collapsed civilizations pushed it yesterday.
A cargo ship that generates some of its power from the sun may shine a light on ways to reduce transportation's dirty little secret — the world's oil-powered fleets are hideous global warmers.
Regulators in car-mad California have made a statement about reducing carbon in the atmosphere, and while its specifics have their critics, expect the rest of the nation to grudgingly follow along.