air pollution

There are Now One Billion Cars Stuck in Traffic Around the World

Photo credit: Cory M. Grenier via Flickr/CC BY-SA

According to the most recent stats, there are now a record one billion cars on the world’s roads. One billion cars doing long and short commutes, one billion cars spurring the growth of unsustainable …

Rick Perry Wants a "Moratorium on All Regulations"

Rick Perry, the governor of Texas who succeeded George W. Bush, announced that he’ll be joining the list of GOP presidential candidates last Saturday. And he wasted no time in trying to set himself apart from the pack by outlining some extreme, Tea P…

How to Get Dirty Old Coal Plants to Disappear: Turn Them Into Parks, Waterfront Spaces

Image via Potomac River Green

There are a number of ways to try to shut down a coal plant: Citizen petitions, grassroots movements, legislative maneuvering, and big, banner-laden activist protests. Usually it takes a combination of all of the above b…

U.S. Had 2,000 Unhealthy Air Alerts in 2011 So Far

Photo: Aske Holst, Flickr/ CC BY

Yes, it’s true that our air — especially in smoggy cities like Los Angeles — has gotten cleaner since important environmental legislation was passed back in the early 1970s. The EPA and the Clean Air Act have helped…

GOP has Voted 110 Times to Block Efforts to Protect the Environment Since January

Image: Sudika via Wikimedia Commons/CC BY-SA

For anyone still puzzling over why I view the Tea Party to be an egregiously destructive force when it comes to the environment, look no further than this evidence: In the seven months since the Tea Party-…

You Can’t be Both a Tea Partier and an Environmentalist. Sorry.

Photo credit: ryanjreily via Flickr/CC BY

The line gets drawn somewhere, folks. Lately, I’ve been receiving a bunch of comments asking me to lay off the Tea Party. One quipped that “it’s not like every person who believes in personal accountability a…

Breakthrough Could Help Chemists Compute Safer Biofuels

Image: Rishabh Mishra/CC

This is your mission, should you choose to accept it: you are a biofuels researcher, diligently seeking a solution that can take mankind into the post-industrial revolution, an era of alternative fuels that are both sustainab…

GOP Trying to Roll Back 39 Important U.S. Enviro Protections

Photo credit: SeƱor Codo via Fotopedia/CC BY-SA 3.0

The other day, I wrote about what some environmentally conscious lawmakers are calling the ‘most anti-environmental legislation’ ever to be brought before Congress. The New York Times has gotten wi…

A Game-Changer for Clean Energy

Photo credit: eutrophication&hypoxia/Creative Commons

When I talk about the Sierra Club’s Beyond Coal Campaign, I can’t help feeling inspired and a sense of pride and optimism. We’ve come so far since the campaign started back in 2002 – even in just …

And the Top 20 States With the "Most Toxic" Air Are …

Photo credit: SeƱor Codo via Fotopedia/CC BY-SA 3.0

Quick — name the “most toxic” state in the U.S. Any guesses? Here’s a clue: the largest source of toxic air pollution in the nation is our fleet of coal-fired power plants. But we’ve got hundreds …