Environment

Atlanta tops a list of the most polluted cities in the country, according to an analysis of EPA data by Forbes.

The Living Building Challenge is a new environmental rating system that focuses on required environmental design elements, diverging dramatically from the credit-based approach of the built environment's dominant rating system, LEED.

Last month saw the debut of one of the world's longest footbridges, which also happens to be 100% solar-powered. 36,500 people are projected to walk across the bridge each week.

What's this? The Wall Street Journal's 'car guy' - the reporter who writes about cars and roads, is .....without a car? As difficult as it may be to believe, Joseph White is now a carless urbanite in DC. Here is his first column in his new lifestyle.

Maryland's 1997 landmark smart growth, hailed as one of the most innovative policies in the nation, has turned out to have failed in what it hoped to accomplish - preserve open space and cluster urban growth, according to a just-released report.

Golf courses use dangerous pesticides and hundreds of thousands of gallons of water to maintain their manicured look. Many people would like to change that. But some golf courses says you can have your cake and tee off, too.

The Environmental Protection Agency is conducting a test on three different types of porous pavement to devise ways to control runoff from parking lots and streets.

The motherlode of wind energy up, up in the air, say scientists. A handful of new technologies are being developed to harvest it at the source, roughly six miles up.

Ford Motor Co. is reporting almost $1b in profits in the third quarter. CEO Alan Mulally credits the Cash for Clunkers program and cost cutting for their success.

A proposed plan from Gensler and 4240 Architecture would turn an abandoned rail line in Chicago into an energy-generating, food-growing powerhouse. Oh, and a park too.

While Canada's federal government resists taking action on climate change, its provincial and Aboriginal leaders have set aside over 200 million acres of boreal forest as a carbon vault.

In order to clean up groundwater pollution from dry cleaning chemicals, Orland, California is planning on injecting soybean oil into the problem area. The plan is touted as lower risk and lower cost than other methods.

How can a Porsche be better for the environment than a Prius? If you use transit to commute, and only take the hot rod out on the weekends. Slate writer Joe Eaton sold his Volvo for a combination of transit and fun.

Alex Steffen weighs the challenges of Transition Towns and, instead, advocates for bright green, optimistic democracy.

This interview with Chief Environment Officer Sadhu Johnston highlights the progress Chicago's already had, including 7 million square feet of green roofs and more bike lanes.

To protect the endangered Delta Smelt fish, pumping of water from California's Sacramento Delta has been drastically cut back. Add in the state's three-year-long drought, and the result is a major problem for the state's people and farmers.

The National Academy of Science has released a report showing that health effects from burning fossil fuels cost the economy about $120 billion a year. Global warming was not included due to uncertainty, so it's focused mostly on air pollution.