About 40 million Westerners rely on the Colorado River today. By 2060, the river will be severely overtapped, according to a government report.
Forty percent of the food grown in the U.S. is trashed -- and a lot of it is still perfectly edible.
Unfortunately, TransCanada's "oil is oil" logic worked in the courts this time around. But pipeline opponents get another hearing next week.
Canadian inventor Louis Michaud has a big idea, and now he has some big funders, too.
A new study suggests a link between rising food allergies and our ubiquitous and beloved pesticides.
Tree farms might soak up lots of carbon, but some critics still think renting a potted tree is better.
State and city officials are going after blighted properties and empowering citizens to clean up their own neighborhoods, too.
For the seventh consecutive quarter, millions more Americans rode trains, subways, and buses.
And a new office of urban innovation could spur even more eco-futurism in the City of Brotherly Love.