When three of the world's biggest polluters pledge to do more to rein in their climate emissions, that's a pretty good day.
Trucks are singularly lethal vehicles when it comes to accidents with pedestrians and cyclists. But there's a way to make them less deadly.
British researchers tried to engineer a kind of wheat that would repel bugs without need for insecticide. They failed, but they still learned a lot.
Forget Kanye West -- the Tibetan leader rocked a panel on climate change to discuss environmental responsibility and Pope Francis' encyclical.
The science is in! The planet hasn't changed this much since the evolution of multicellular animals.
Should we really be spending limited science funding on social science and climate change art, when we haven't figured out all the hard stuff yet?
The court ruled 5-4 that the EPA didn't properly take costs into account when regulating emissions of mercury and other toxic pollutants.
Neonics were supposed to reduce the use of sprayed pesticides -- and they did. But they also stick around long enough to harm the whole wild ecosystem.
What to do with old Barbies, Lego bricks, and other plastic toys? Umbra sorts through the disposal dilemmas represented by the toybox.