Friday, EPA Administrator Lisa Jackson officially determined that global warming pollution "endangers" the nation's human health and well-being.

The "endangerment finding," as we enviros call it, was required by the Supreme Court during Massachusetts v. EPA, a landmark victory that rejected the Bush EPA's laundry list of reasons not to address global warming pollution under the federal Clean Air Act.

Since that victory in April of 2007, we have been waiting for the EPA to "determine" what scientists have known for years: that global warming pollution is a danger to America's health and well-being.

This EPA finding, coupled with the American Clean Energy and Security Act moving out of Chairman Henry Waxman's committee by Memorial Day, offers us a glimpse at the finish line.

While the determination does not establish national emission standards for the main culprits of carbon pollution, the EPA will begin developing these standards while it finalizes the "endangerment" determination.

See our overview of the case for more about the twists and turns on the road to this determination.

This post is by John Balbus, M.D., M.P.H., Chief Health Scientist at Environmental Defense Fund.

Yesterday, a quiet public hearing on a hot August day in Washington D.C. drew a surprisingly large crowd. The official reason for the hearing, conducted by the National Highway Transportation and Safety Administration (NHTSA), was to take comment on the Environmental Impact Statement (EIS) for revised Corporate Average Fuel Economy (CAFE) standards. A lawsuit forced NHTSA to draft an EIS that assessed global climate change impacts – including health – from improved fuel economy in the U.S. car and light truck fleet.

The 400-page document is technical, turgid, incomplete and misleading, and asserts that it is not possible to distinguish between the future health and climate impacts of a 41 mpg fuel economy versus the present 25 mpg. Needless to say, EDF does not agree with that conclusion or the methods used to come to it, but the comments at the hearing were far broader than just the EIS. Most striking was the lineup of citizens who called on NHTSA to take definitive action on climate change to help protect their future.

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This post is by John Balbus, M.D., M.P.H., Chief Health Scientist at Environmental Defense Fund.

Despite EPA's refusal to formally acknowledge the danger of greenhouse gases in its Advanced Notice of Proposed Rulemaking (ANPR), two recently released EPA reports detail the health dangers of greenhouse gases.

The first, a support document for the ANPR [PDF], summarizes the extensive body of science showing that global warming pollution presents a serious threat to human health and the environment. The document is labeled "draft" and stamped "do not circulate or cite", but is listed on the EPA Web site as one of the supporting documents for the released ANPR. From the Executive Summary:

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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.

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This post is by Catherine Malina, an associate in the Health Sciences Program at Environmental Defense Fund and a survey interviewer for the "Are We Ready?" report.

Environmental Defense Fund released a new report [PDF] today on the U.S. public health system's state of preparedness for global climate change. It's based on a survey of local health department directors from across the country. I was one of the survey interviewers.

Is our nation ready to address the public health challenges of a warming planet? Our survey found there's much work still to be done.

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This post is by John Balbus, M.D., M.P.H., Chief Health Scientist at Environmental Defense Fund.

Last week was National Public Health Week, with a focus on how climate change harms health. The week's activities flowed from the public health community into the Congress.

In the House, Center for Disease Control's Howard Frumkin detailed the dangers to human health posed by climate change. In the Senate, Senator Kennedy's Health, Education, Labor and Pension (H.E.L.P.) committee also held hearings on climate change and health.

I was invited to give testimony before the H.E.L.P committee about the gaps in public health preparedness for climate change, based on a survey and upcoming report I wrote on the topic. Here are some of the highlights. My full testimony [PDF] is posted on our Web site.

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

At a congressional hearing on Wednesday, Howard Frumkin, a senior official at the Centers for Disease Control and Prevention (CDC), said there was strong scientific evidence of major health problems due to climate change in the next few decades, including:

• Heat waves that put children and the elderly at risk
• Danger of droughts and floods from extreme weather
• Increased food-borne and water-borne infectious diseases
• Worsened air pollution due to higher temperatures
• Migration into new areas of vector-borne diseases like malaria

At least he got to say it. Last October, CDC testimony on the health risks from global warming was censored by the White House.

Rep. Hilda Solis (D-Calif), who chaired the hearing, said she suspected that "a layer of screening" continues to limit what CDC officials are allowed to say.

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

Happily, actions that promote a healthy environment also tend to promote personal health. Using muscle power for transportation by walking and biking gives you the best kind of exercise, and also reduces your carbon footprint. Drinking tap water rather than bottled gives you clean water at one-thousandth the price.

You can use the money you save by avoiding bottled water to make better food choices – in particular, organic produce and dairy from grassfed animals. It also helps both you and the environment to avoid processed foods and foods with heavy packaging.

For more ideas, check out our article Tips for a Healthy, Low-Carbon Life, part of our coverage of National Public Health Week and the impact of climate change on our nation's health.

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

Global warming can endanger your health in many different ways. The more intense storms it brings not only cause direct loss of life, but also illness and death from contaminated food and water. Heat waves can cause lethal heat strokes, and also ozone smog that triggers breathing problems.

For more on where the dangers lie and what you can do to protect yourself, check out our article on Health Dangers from a Warming Planet, part of our coverage of National Public Health Week and the impact of climate change on our nation's health.

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

Today is the start of National Public Health Week, and this year's focus is the impact of climate change on our nation's health. The health risks from global warming are not distributed evenly, and some people are in more danger than others. Take a look at our article Health and Global Warming: Are You at Risk? Some of the risk factors may surprise you.