L.A. artist creates sublime monuments from discarded materials.

Former Formula One engineer unveils superlight eco car.

The New York Times reports.

The story of a species on the brink of extinction.

A U.S. military base goes solar.

A modern dairy tale.

Report says exposure to BPA in canned food is "far more extensive" than plastic bottles.

Dot Earth asks why oil salvaged from the spill is going to BP instead of U.S. reserves.

Move follows plastic bag prohibitions by several Californian cities.

But do the functional benefits meet the aesthetic aims?