Fossil-fuel pollution has been offsetting global warming to the tune of about 30 percent per year. Cleaning up that pollution, a must, threatens to accelerate warming unless humanity changes its fuel-use strategy.

“New Orleans, at the end of the century, will be an island” — literally, predicts Bruce Babbitt. Whether or not you believe his assessment, he makes a good case for considering the implications of climate change when planning federal projects.

Rather than wowing its visitors this summer with world-class air pollution, China wants to impress them with its clean, green Olympics.

Researchers with the Brookings Institution have just published a blueprint for tackling what they perceive as a brewing innovation crisis. They propose that Uncle Sam create a federal agency to focus squarely on helping home-grown companies increase their innovation, productivity and profitability.

A new study finds that being environmentally conscious is no guarantee you’ll put your home where you mouth is.

After mothballing five libraries as a purported cost-cutting gesture, the agency is now responding to congressional prodding and unboxing its books.

Medicinal Chocolate . . . Part 1 My husband has a saying: “If it’s not chocolate, it’s not dessert.” It’s a sentiment shared by all members of our household (even, unfortunately, our dog, for whom chocolate is toxic). And the darkest chocolate, my daughter notes, is the best, by which she means the yummiest. Health groups have begun lauding dark chocolate as well—but in their case, for its putative health benefits. Just Monday, for instance, the National Foundation for Cancer Research issued a press release stating that “the darker the chocolate, the better it is for you. Dark ...

China appears to be the world leader in carbon-dioxide emissions, but we may be partly to blame.