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The National Trust for Historic Preservation argues in favor of smaller, older buildings. But big, new projects are critical to healthy cities as well.
A reader inquires about bovine flatulence. Umbra lets it rip.
One of the moderators of the science page on social news site reddit explains why they ousted climate-skeptic commenters and what they learned in the process.
Run as a Democrat.
ERM, which wrote the environmental study on Keystone XL, did dodgy and deceptive stuff, but none of it amounted to serious rule breaking, says the State Department's inspector general.
An Australian agency has given Indian and Australian coal mining companies permission to dump silt from a dredging project in the Great Barrier Reef Marine Park.
New research finds that infants born near fracking wells in Pennsylvania had lower birth weights and more health concerns than other newborns.
Farmers today don't muddy rivers as much as they used to -- but the full downstream picture is still quite dark.
Jeff Mitchell rides up and down California's Central Valley bearing a message: Farming without plowing saves soil and money.