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David Brower, a pioneer of the U.S. environmental movement, once said that his generation depended on young people “to shape...
Dear Umbra, I’m an elementary school teacher and I’d like to get a pet fish for my classroom, but I’ve...
Dear Umbra, Antioxidant foods are “the thing” right now, and I would love to be able to eat as many...
Everyone knows that water is the stuff of life. But is it best viewed as a commodity or as part...
EPA Develops Industry-Friendly Wood-Products Regulation How does the song go? “It’s all the same; only the names have changed.” This...
Acclaimed author Terry Tempest Williams is currently on the road for a cross-country “Open Space of Democracy Tour” sponsored by...
Humans Affecting Evolution of Other Species Lay scientists tend to think of evolution as a glacially slow process, with changes...
It’s always been hard to get people to take global warming seriously because it happens too slowly. Not slowly in...