This post is by Mel Peffers, a project manager in the Living Cities program at Environmental Defense Fund.

Today is World Asthma Day. Since car exhaust can lead to asthma as well as global warming, we thought it would be a good day to highlight the importance of not idling your car or truck engine.

What makes idling especially bad for health is that drivers tend to idle in gathering places – by sidewalks, schools, playgrounds, homes, and offices. Breathing in pollution close to the source is more dangerous than farther away.

Take a look at the evidence.

Read more »

This post is by Robert Bonnie, Co-Director of the Land, Water and Wildlife Program at Environmental Defense Fund.

The New York Times recently reported that thousands of farmers are dropping out of the federal government's Conservation Reserve Program. The prices for corn and other crops are so high that conservation subsidies can't compete with what farmers can make by planting the land. One reason for the high prices is the ethanol mandate in the energy bill Congress passed last year.

Shifts in land use from diverting food-producing land to grow crops for energy – called "indirect land-use change" – can potentially negate the environmental benefits of corn ethanol. There is still much debate on how to measure it, but no question it's important to consider. One recent study published in Science (Searchinger et. al.) found that using croplands for biofuels causes a significant increase in greenhouse gas emissions relative to gasoline when indirect land use change is taken into account.

Unintended consequences such as these highlight the danger of mandating a specific clean energy technology, and the importance of relying on performance standards instead.

Read more »

This post is by Andy Darrell, vice president of the Living Cities Program at Environmental Defense Fund.

Yesterday, the New York State Legislature failed to pass congestion pricing for New York City (see NY1 report), thus forgoing $354 million in federal funds.

Today more than ever, New York and America's other big cities need solutions for clean air and better transit – our health, climate and economy depend on it. Over the past year, an extraordinary majority of New Yorkers came together to support congestion pricing, and of course today's setback is very disappointing. But I believe that New York will continue to strive for innovative solutions, and Environmental Defense Fund is dedicated to working with leaders from across the state to help make those solutions real.

This post is by Sheryl Canter, an online writer and editorial manager at Environmental Defense Fund.

Congestion pricing – an antidote to urban gridlock and tailpipe pollution used in cities around the world – advanced another step towards passage in New York City yesterday. After almost a year of research, debate, public dialogue and fine-tuning, the New York City Council voted "yes" to congestion pricing.

Next stop: Albany. If state legislators approve the plan, New York City will soon enjoy less traffic, better mass transit, cleaner air, and tens of thousands of new construction jobs – good news in a sagging economy.

Read more »

This post is by Sheryl Canter, an Online Writer and Editorial Manager at Environmental Defense Fund.

Oil is over $100 a barrel now – an all-time high. Even if burning gasoline weren't a major cause of global warming, a price that high is motivation to conserve.

But we don't seem to be trying very hard.

Here are some numbers that make the point from Earth: The Sequel, the new book by EDF President Fred Krupp and Miriam Horn. (All profits from book sales support our global warming work.)

Read more »

This post is by Sheryl Canter, an Online Writer and Editorial Manager at Environmental Defense.

John DeCicco, Ph.D. is Senior Fellow, Automotive Strategies at Environmental Defense.

The American Council for Energy-Efficient Economy (ACEEE) just announced its eleventh annual ratings for the greenest and "meanest" vehicles. Natural gas and hybrid vehicles do best – no surprise there. But the meanest (dirtiest) list is dominated by diesels, despite their higher fuel efficiency, because they spew out high levels of nitrogen oxide and particulate matter.

I spoke about this with our resident car expert John DeCicco, who was the original creator of ACEEE's Green Book when he worked for that organization. "I do have my morbid moments", John said, "but no need to give up hope yet!"

More from John below…

Read more »

This post is by Sheryl Canter, an Online Writer and Editorial Manager at Environmental Defense.

New York City suffers from some of the worst traffic congestion in the country, costing workers and businesses billions of dollars a year in lost time, and heavily contributing to New York's nearly worst-in-the-nation air quality. One in eight New Yorkers suffer from asthma. And New York is expected to add one million residents by 2030.

New York State charged a commission of elected officials, and environmental and planning experts with solving New York City's traffic crisis. Andy Darrell, Regional Director for Living Cities at Environmental Defense, was one of the commissioners. Today the commission voted to approve an historic plan to protect New Yorkers' health.

A key element of the plan is congestion pricing, where an electronically-collected fee system charges drivers more for using the most congested roads at the most congested times. This encourages drivers to instead use mass transit or to reschedule their trip. Cities around the world are successfully using congestion pricing to reduce traffic and pollution from vehicle exhausts.

Read more »

This post is by Andy Darrell, Regional Director for the Living Cities program at Environmental Defense.

There are way too many cars in New York City – no question about that. Congestion pricing – charging a fee to cars entering the city – is a simple and effective solution.

But some people weren't so sure about this when Mayor Bloomberg first proposed the plan. So last summer, a commission – on which I serve – was formed to study the issue and make recommendations.

Today, after six months of intensive research, public hearings and debate, we released a draft of our recommendations. And we want your feedback.

Read more »

This post is by Sheryl Canter, an Online Writer and Editorial Manager at Environmental Defense.

Site member border2 posted this idea to our Suggestion Box:

I think it could be useful/interesting to have some sort of a comparison or perspective of how much oil is being consumed by the U.S. and the world. … Like every x number of minutes the U.S. consumes x number of Olympic-size swimming pools of oil. I really don't have a concept of the massive amount of oil we are using – x barrels of oil doesn't translate into something I can plug into my world.

I put this question to one of our numbers experts, Noah Greenberg, and here's what he told me.

Read more »

This post is by Mel Peffers, Air Quality Project Manager at Environmental Defense.

Many people idle their car engine in winter because they think it needs time to warm up. Not true! Today's fuel-injected engines don't need a warm-up period, and idling for long periods can lead to excessive engine wear.

Worse, cars idling for over 10 seconds use more gas and create more global warming pollution than simply restarting the engine. Surprised? It's true. The 10-second rule has been proven empirically.

Read more »