Climate 411

D.C. Circuit Court Rejects More Protective Ozone Standards

By Elena Craft, PhD / Published: August 6, 2013

(This post originally appeared on our Texas Clean Air Matters blog)

I’ve written extensively about the potentially grave health effects of ground-level ozone (smog) and the need for stronger standards to address ozone pollution.  In 2008, the EPA set a national standard for ozone at 75 parts per billion—despite the fact that the nation’s leading medical societies and the EPA’s own Clean Air Scientific Advisory Committee (CASAC) warned that the standard was not stringent enough to protect Americans from adverse health effects.  A number of U.S. cities and counties petitioned the EPA to amend the standards to sufficient levels.  EDF joined the call for common-sense ozone standards, partnering with the National Resources Defense Council, American Lung Association, National Parks Conservation Association, Appalachian Mountain Club and Earthjustice to press for a more protective standard.

Last week, a panel of the U.S. Court of Appeals for the D.C. Circuit rejected petitions for a more protective air quality standard for ground-level ozone.  The decision is deeply disappointing and in direct contradiction of ample scientific evidence showing the health hazards of ozone pollution at levels below the current standards.

Reasonable ozone standards are of particular importance to Texans.  Ozone tends to form from vehicle tailpipe emissions on hot sunny days—so it’s no surprise that a typical Texas summer day is a perfect incubator for ozone gas.  Texas has some of the highest ozone levels in the nation.  The American Lung association identified a number of Texas cities and counties as ozone danger areas—including Houston and Dallas, two of the largest cities in the United States.

Millions of Texans are exposed to dangerous ozone levels every summer.  Ozone can cause inflammation of the lungs, making breathing difficult or painful.  Increased lung irritation from ozone exacerbates asthma, emphysema, bronchitis and other respiratory diseases—increasing the risk of asthma attacks and other dangerous respiratory events.  Just a short period of moderate ozone exposure can push breathing problems over the edge; a 2010 study in the Journal of Allergy and Clinical Immunology reported a 19% increase in ICU admissions on higher ozone days.  Another study published in Environmental Research Letters linked short-term exposure to ozone with increased hospital emissions among the elderly.  And in Houston, researchers have demonstrated a significant increase in risk of heart attacks within just a few hours of exposure to ozone.

While today’s decision declined to establish a reasonable, protective standard on national ozone levels, the EPA should move forward with stronger standards as it conducts its legally-required review of the 2008 standard.  There are a number of proven, cost-effective solutions to protect Americans from the dangers of smog.  The EPA should mitigate ozone pollution at the source by finalizing the “Tier 3” tailpipe emission standards, which would have significant benefits for Texans and save billions in healthcare costs going forward.  At the same time, the EPA should strengthen emissions standards for other sources of ozone like oil and gas development activities and coal-fired power plants.

Texas’ combination of steady oil and gas development, hot summers, and millions of cars on the road increases the potential for generation of harmful levels of ozone. The Clean Air Act is our strongest lever to protect public health from the impacts of pollutants like ozone.  I am confident that the latest assessment of the standard will result in a standard that better reflects the scientific literature and more adequately protects public health.

Also posted in Clean Air Act, Policy / Comments are closed

Protecting the Planet: A Report from the International Conference on Mercury in Edinburgh

By Kritee / Published: July 31, 2013

(EDF’s Mandy Warner co-wrote this post)

This week, experts in science, policy, and industry are meeting in Edinburgh, Scotland at the International Conference on Mercury as a Global Pollutant (ICMGP).

We are honored to join them to discuss international mercury science and policy, and to share EDF’s work on mercury.

The ICMGP has been held periodically for more than 18 years. It has become the pre-eminent international forum for formal presentation and discussion of scientific advances concerning mercury, and gathers between 700 and 1200 experts for the five-day conference and exhibition.

This year’s conference will be of particular importance, because this year will launch the United Nations Environment Programme (UNEP) Global Legally Binding Treaty on Mercury — which can provide much-needed global action on mercury.

This year, UNEP has also released its new report, Global Mercury Assessment 2013 – Sources, Emissions, Releases and Environmental Transport.

So this year’s meeting is perfectly timed to celebrate the release of the report AND the launch of the international treaty — and most important, to discuss how to put the treaty into practice. It will be a great opportunity for policymakers and scientists to collaborate on solutions that address worldwide mercury emissions.

It is well-known that mercury is an extremely toxic metal.

Mercury primarily exists in three chemical forms in nature: elemental mercury, oxidized mercury and methylmercury.

Methylmercury is the most neurotoxic substance that builds up collects in our aquatic foodchains.

About 400,000 children are born in the U.S. each year with so much mercury in their blood that healthy brain development is threatened.

As they grow, these children’s capacity to see, hear, move, feel, learn and respond is compromised.

While some forms of mercury are deposited near the emissions source, other forms — such as gaseous mercury — are stable in the atmosphere for approximately a year. Gaseous mercury can be deposited far from its source, even thousands of miles away – which is why it has global impacts.

The U.S. is leading the way to reduce mercury emissions from a variety of sources, including coal-fired power plants — the largest remaining source of mercury in America.

The Mercury and Air Toxics Standards for power plants are in place thanks in part to strong support from EDF members, and from our partners in the environmental, health, faith, environmental justice, and business communities.

Power companies are working now to meet emission standards by spring 2015, by installing American-made technology.

EDF has helped advance mercury policy at the state and national level in the U.S. over the past several decades.

During the development of the recently finalized Mercury and Air Toxics Standards, we provided technical comments and testimony; worked with EPA, states, companies; collaborated with both Republicans and Democrats in Congress to defend protective standards; and worked through the courts to advance strong mercury standards.

Our partner organizations like Moms Clean Air Force have helped engage diverse voices from across America, and bring new constituencies to the forefront of the national policy discussion on air pollution and toxics.

We now have the privilege of highlighting the U.S. experience reducing mercury and advancing technology solutions in the power sector to this important international scientific and policy forum.

We hope to forge new partnerships to advance an international solution to mercury pollution that can protect the health not only of Americans, but people across the globe.

Also posted in International, Policy, Science / Comments are closed

Climate Change Imperils Human Health

By Mandy Warner / Published: July 29, 2013

Health organizations have made it clear that climate change is a health issue.

American Lung Association has said:

[S]cientists warn that the buildup of greenhouse gases and the climate changes caused by it will create conditions, including warmer temperatures, which will increase the risk of unhealthful ambient ozone levels.

Climate change will impact many facets of human health in the U.S. through worsened air quality, increased transmission of infectious diseases from insects, and increased impacts from extreme weather.

These climate impacts will affect our health, daily lives, and our pocketbook.

Numerous health organizations have recognized the impact climate change is having on human health, and the need for action to mitigate emissions and assist with adaptation.

Here’s a look at what some leading health organizations and their representatives have to say about climate change and human health.

American Academy of Pediatrics journal publication:

Anticipated direct health consequences of climate change include injury and death from extreme weather events and natural disasters, increase in climate-sensitive infectious disease, increases in air pollution-related illness, and more heat related, potentially fatal, illness. Within all of these categories, children have increased vulnerability compared with other groups.

American Lung Association website:

Scientists warn that the buildup of greenhouse gases and the climate changes caused by it will create conditions, including warmer temperatures, which will increase the risk of unhealthful ambient ozone levels. Higher temperatures can enhance the conditions for ozone formation. Even with the steps that are in place to reduce ozone, evidence warns that changes in climate are likely to increase ozone levels in the future in large parts of the United States.

World Health Organization fact sheet:

Climate change affects social determinants of health – clean air, safe drinking water, sufficient food and secure shelter.

American Medical Association news/opinion piece:

Climate change produces weather extremes on both ends of the temperature spectrum. In Maine… it’s expected to have a rising rate of heart attacks and problems related to extreme snow, ice and cold. [Furthermore], in Maine, that’s being seen in a marked increase of Lyme disease. Warmer and shorter winters mean that deer ticks die off in smaller numbers, which means more will breed.

Asthma and Allergy Foundation website:

Twenty-five million Americans, including 7 million children, have asthma, and 50 million Americans have allergies… They are more likely to sleep poorly at night, miss school or work, and risk hospitalization and even death because of the increasing environmental triggers due to climate change.

Despite these alarming emerging health-climate issues, I am optimistic about our ability to implement the needed climate solutions to reduce emissions and adapt to impacts.

Just last year, 40 percent of all new electric capacity built was wind power, more than any other source added.

States like Texas, Iowa, Illinois, Minnesota, Oklahoma, Kansas, Colorado and California are leading the way on wind power. The U.S. has now installed 60 gigawatts of wind, one-fifth of the world’s total wind capacity.

The economic benefits of wind power are clear. Wind energy companies pumped $25 billion into the U.S. economy in 2012 alone through new project investments, and the wind industry employs 80,000 people.

Other solutions, like energy efficiency, continue to advance each year as well.

Annual savings from electricity and natural gas efficiency programs in 2011 were 19% higher than in 2010. That’s a huge improvement, although enormous efficiency savings – savings that can reduce emissions and save consumers money — still remain on the table.

Our fate is in our own hands.

We can continue to make progress reducing emissions by implementing President Obama’s Climate Action Plan while growing a strong economy.

Making the choice to reduce climate destabilizing emissions will mean a better world for my seven-month old daughter, her generation, and the generations to come. And better air quality will mean my daughter can take full advantage of those long summer days we all enjoyed growing up.

We have a responsibility to take aggressive steps now in order to help stem the tide of the more severe climate impacts we know are coming.

Also posted in News, Science / Read 1 Response

Supreme Court to review decision critical to cleaning up America’s air

By Graham McCahan / Published: July 1, 2013

(This post first appeared earlier today on EDF Voices)

On June 24, 2013, the U.S. Supreme Court decided to review the D.C. Circuit Court of Appeals’ decision in a case called EME Homer City Generation. To anyone concerned about the quality of the nation’s air, this was very big news. Here’s why.

In EME Homer City, which the D.C. Circuit decided last summer, a divided court overturned the Cross-State Air Pollution Rule, one of the Environmental Protection Agency’s most important (and cost-effective) clean air programs. In their filing asking the Supreme Court to hear the case, the Environmental Protection Agency argued that “the court of appeals committed a series of fundamental errors that, if left undisturbed, will gravely undermine the EPA’s enforcement of the Clean Air Act.”

The stakes are high. Every year, the Cross-State Rule, if only it can be applied, will save up to 34,000 lives and $110 to $280 billion in net health benefits. Without it, millions of people and entire communities will remain exposed to dangerous levels of pollution.

EPA issued the Cross-State Rule in 2011 under the Clean Air Act’s “good neighbor” provision, which directs states to “prohibit” emissions that are carried downwind and contribute to unhealthy air pollution in neighboring states. If states do not live up to their good neighbor obligations, then the Clean Air Act requires EPA to step in. According to 2011 estimates, air pollution from neighboring states accounted for more than three-quarters of local air pollution in many areas struggling to comply with EPA’s health-based standards. As this data shows, millions of Americans are breathing unhealthy air that originates in neighboring states.

The Cross-State Rule helps address this problem by reducing harmful smokestack pollution from power plants, which can drift for hundreds of miles and adversely affect distant communities. Despite its enormous health benefits and relatively small compliance costs, numerous power companies and several states challenged the Cross-State Rule in the D.C. Circuit. Numerous parties then joined the case in support of EPA and the Cross-State Rule, including: several states and cities that are adversely affected by interstate pollution; three major power companies; and EDF, along with some of its public health and environmental allies.

After the D.C. Circuit struck down the Cross-State Rule, Environmental Defense Fund, along with the American Lung Association, Clean Air Council, Natural Resources Defense Council, and Sierra Club filed a petition seeking Supreme Court review, which the Supreme Court granted along with EPA’s petition.

The Supreme Court, we believe, should reverse the decision of the D.C. Circuit and restore the clean air safeguards of the Cross-State Rule.

This will safeguard the air quality of millions of Americans who depend on EPA to protect them from pollution that comes from beyond the borders of their own states. No wonder, when EPA called for the Supreme Court to review EME Homer City, they warned that, should the decision stand, it would “seriously impede the EPA’s ability to deal with a grave public health problem.”

Also posted in Clean Air Act, Policy / Comments are closed

The Cost to Meet Clean Air and Environmental Standards Comes Down (Again)

By Mandy Warner / Published: June 11, 2013

It is almost getting old for us to write about this … but it needs to be repeated.

As power plant pollution control projects continue, we are seeing – yet again — that the cost of meeting clean air standards, like the Mercury and Air Toxics Standards for power plants (MATS), has fallen.

Unfortunately, that hasn’t stopped some major power companies and other opponents from trying to undermine clean air and environmental standards.

However, this past quarter American Electric Power (AEP), NRG, and FirstEnergy each told their investors that their anticipated costs for meeting environmental standards dropped.

As you can see on our chart, AEP has lowered its estimated costs of following environmental standards by half, from a high of $8 billion down to $4 to $5 billion.

AEP was the top emitter of mercury, carbon dioxide, nitrogen oxide, and sulfur dioxide in 2011 among the top 100 power producers in the U.S.

And … AEP is a leader in the lawsuit to halt the Mercury and Air Toxics Standards.

As our chart also shows, FirstEnergy has lowered their cost estimate for complying with the Mercury and Air Toxics Standards by nearly 70 percent.

FirstEnergy’s estimate dropped from a high of $3 billion down to $925 million (which is $50 million lower than they estimated last quarter).

FirstEnergy was the sixth highest emitter of mercury in 2011 among the top 100 power producers, and is also challenging the Mercury and Air Toxics Standards in court.

The third company on our chart, NRG, has lowered its costs for complying with environmental standards from $730 million to $530 million, a reduction of more than 25 percent.

NRG was the fourth highest emitter of mercury in 2011 among the top 100 power producers.

These three companies are just a few of the power companies that have decreased their cost estimates for complying MATS and other environmental standards in recent years.

The tens of billions of dollars in expected health benefits from the Mercury and Air Toxics Standards has not decreased, though.

The Mercury and Air Toxics Standards will provide crucial emission reductions of toxic pollutants including mercury, acid gases, sulfur dioxide, and chromium.

It will save thousands of lives every year, prevent heart attacks and asthma attacks, and help protect the hundreds of thousands of babies born in America every year who are exposed to unsafe levels of mercury in the womb. And that is priceless.

It’s important that we keep in mind these misguided “sky is falling” claims about environmental compliance costs as EPA carries out its responsibilities under the nation’s clean air laws to address carbon pollution from power plants.

The time tested history of the Clean Air Act is quite the opposite – the sky is clearing, and at far less than the costs predicted by industry.

Also posted in Clean Air Act, Economics, News, Policy / Comments are closed

Stronger Ozone Standards Will Secure Healthier, Longer Lives for Millions of Americans

By Elena Craft, PhD / Published: June 6, 2013

(Originally posted yesterday on EDF Voices)

For some time, public health and medical experts have been clear that the Environmental Protection Agency’s air quality standard for ozone, the primary ingredient in smog, isn’t doing enough to protect Americans from serious health risks.

Unfortunately, before EPA even proposed new health standards in response to rigorous science, the American Petroleum Institute (API) attacked with sky is falling claims that 97% of businesses in America would shut down.

This is quintessential beltway politics: fact free and designed to hide the real issues.

As a health scientist, I think the facts matter. And the bottom line is that EPA has a responsibility to adopt health standards anchored in science. So let’s take a closer look at what the science tells us.

Ground-level ozone is the main component of smog and is the single most widespread air pollutant. Ozone is linked to premature deaths, increased asthma attacks and breathing problems, as well as increased emergency room and hospital admissions. This pollutant poses an especially serious risk to children, seniors and people with lung diseases like asthma and bronchitis.

The Science is Sound

The science on ozone’s health effects is rock solid. Evidence from more than 1700 peer-reviewed scientific reports (which continues to be reinforced by new data) clearly shows that our current ozone standard isn’t doing the job of protecting the public health. We need to strengthen that standard.

The Clean Air Scientific Advisory Committee (CASAC) – the body that makes science-based recommendations to EPA – has issued multiple statements indicating that the current ozone standard of 75 parts per billion (ppb) is unacceptable with regard to protecting human health.

And new research, including recent reports demonstrating a significant increase in pulmonary inflammation in healthy individuals exposed to 60 parts per billion (ppb) ozone, supports this analysis and highlights the urgent need for a more health-protective standard.

Need for an Adequate Margin of Safety

By law, EPA must set national health-based standards that protect human health with “an adequate margin of safety.” To do this, the agency considers factors including the nature and severity of the health effects involved, the size of the at-risk populations, and the scientific uncertainties that must be addressed.

How do these factors add up in the case of ozone?

The nature and severity of the health effects involved: It is hard to imagine health effects more severe than death or the inability of a person to breathe without a struggle, especially if it’s a small child who has to be rushed to the emergency room.

The size of the at-risk population: Nearly 34 million Americans have been diagnosed with asthma during their lifetimes and estimates predict that number will grow by more than 100 million by 2025. Nearly 12 million people suffer from chronic obstructive pulmonary disease (COPD), a disease that causes serious, long-term disability and kills more than 120,000 Americans each year. And that’s only a partial list of those at increased risk from ozone.

The degree of uncertainties that must be addressed: Evidence continues to accumulate of effects in healthy people at exposures as low or lower than 60 ppb. Thus, if uncertainty is part of the decision making process, then EPA is obliged to adopt a standard even more protective than the one recommended by CASAC.

Here We Go Again: Unfounded Claims Concerning Economic Impacts

These kinds of sky is falling prognostications are not new. As far back as 1997, when EPA was considering one of the first revisions to the ozone health standard, Senator Spencer Abraham (R. MI) was among many who claimed that the new standards would have devastating economic impacts. “Dry cleaning establishments, hair salons, and other small businesses will not be able to absorb the increased costs imposed by these regulations,” the Senator said.

Those claims proved to be entirely false. In fact, in fact, Texas has made the case that the Gross Domestic Product (GDP) has gone up even as ozone controls strategies have been adopted, resulting in cleaner air across the state.

Old scare tactics die hard. That’s why today API and others are again trying to stop reform of the ozone standards by making the same sort of unfounded claims that all businesses will close the doors. But environmental protection is, or should be, a health issue, not a political football. And it’s on the ground of health that that The American Academy of Pediatrics, the American Medical Association, the American College of Chest Physicians, the American Public Health Association and the American Thoracic Society have all endorsed CASAC recommendations for new ozone standards.

In the end, EPA should not be swayed by “sky is falling” claims, whether from the petroleum industry or any other group. We urge EPA not to delay adoption stricter ozone standards. To do so would be to needlessly threaten the health of millions of Americans.

Also posted in Clean Air Act, News / Comments are closed