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If we are to foster a broader conversation about global warming, one that includes population, it's important to remember why the topic has been largely off limits for so long.
A reader wonders which is more energy efficient, bottle-fed water coolers or the newfangled point-of-use kind. Umbra distills the answers.
Recent studies show that air pollution decreases test scores and contributes to ADHD, both of which can cause big trouble later in life.
A new report pins the blame for a recent spate of heat waves on human-caused climate change -- but for the California drought, the evidence is murkier.
Thirsty Californians now need to think twice before they tap that aquifer.
“This is no cause for alarm,” one official said. Um, yes, it is.
If urine Cave Junction, Ore., this congressional candidate would like to hear from you.
Turns out extreme drought can move mountains, too.
A couple of weeks ago, we posted a quiz to help you find out what kind of environmentalist you are. Here's how you answered -- and who we left out.