Clean Air

Cities

PhillyTreeMap: Crowdsourcing the urban forest

PhillyTreeMap, an open-source mapping system, helps Philadelphia keep track of an urban treasure -- its trees.

Business & Technology

Critical List: New fuel economy standards; flat screens use less energy

Both options currently on the table for raising the debt ceiling would cut environment and energy spending. The president will announce new fuel economy standards -- cars and light-duty trucks will need to be at 54.5 miles per gallon by …

Clean Air

The EPA does not want you feeding arsenic to your baby

It's only 16 months until the next election, and you know what that means: We are in the thick of political ad season. Mostly that makes everybody want to crawl under a sofa, but sometimes you get arresting ads like …

Clean Air

A body of evidence for bodily harm from air pollution

An op-ed writer for the Washington Times demands the EPA "show him the bodies" of victims of power plant emissions. Sadly, that is all too easy to do.

Clean Air

Google science fair winner stands up for air quality

Naomi Shah, winner of the Google science fair in the 15-16 age group, isn't just a budding research scientist. She's also an environmentalist. And her project, which focuses on the effects of air quality triggers on asthma sufferers, highlights why …

Clean Air

Why closing NYC's only nuclear power plant would be a really bad idea

Rawwwrrr! It's a progressive cat-fight! On the one side is New York State Gov. Andrew Cuomo, who wants to shut down the Indian Point nuclear power plant on the Hudson River, just 25 miles north of the Bronx. On the …

Clean Air

New EPA air pollution standard protects public health

Recognizing that pollution doesn't stop at the border, the rule will reduce power plant emissions of soot and smog that travel downwind across state lines.

Clean Air

How China accidentally geoengineered the climate

Between 2003 and 2007, China burned so much coal that it increased global consumption of the stuff 25 percent. That put so much sulfur into the air that it more or less literally (temporarily) blotted out the sun, masking some …

Climate & Energy

PG&E green program helps preserve forests, but so did taxpayers

PG&E's ClimateSmart program sells carbon credits to preserve a forest already protected by tax dollars