e360 digest
Pollution & Health


15 Apr 2015: Entries Invited for e360
Contest For Best Environmental Videos

The second annual Yale Environment 360 Video Contest is now accepting entries. The contest honors the best environmental videos. Entries must be videos that focus on an environmental issue or theme, have not been widely viewed online, and are a maximum of 15 minutes in length. Videos that are funded by an organization or company and are primarily about that organization or company are not eligible. The first-place winner will receive $2,000, two runners-up will each receive $500, and all winning entries will be posted on Yale Environment 360. The contest judges will be Yale Environment 360 editor Roger Cohn, New Yorker writer and e360 contributor Elizabeth Kolbert, and documentary filmmaker Thomas Lennon. The deadline for entries is June 15, 2015.
Read more.
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08 Apr 2015: Clay Shows Promise in
Capturing CO2 from Power Plants

Common clay can be just as effective as more advanced materials in capturing carbon dioxide emissions from power plants, according to research by Norwegian and Slovak scientists. One particular type of clay mineral, known as smectite, was especially effective in absorbing CO2 emissions, the researchers said in the journal Scientific Reports. One possible use for clay would be to incorporate it into filters or scrubbers in smokestacks at power plants, the scientists said. They said their research into clay’s CO2-absorbing capabilities is preliminary and would not be available for commercial use anytime soon. But the scientists said clay offers many benefits compared to some other expensive and potentially toxic CO2-scrubbing materials.
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31 Mar 2015: Major Wildlife Impacts
Still Felt 5 Years After Gulf Oil Spill

Nearly five years after the Deepwater Horizon oil spill, dolphins in the Gulf of Mexico continue to die at unprecedented rates, endangered Kemp’s ridley sea turtles are experiencing diminished nesting success, and many species of fish are suffering from abnormal development among some juveniles after exposure to oil. Those are the conclusions of a new study from the National Wildlife Federation, released three weeks before the fifth anniversary of the Deepwater Horizon spill, which began on April 20, 2010. The study also said that populations of brown pelicans and laughing gulls have declined by 12 and 32 percent respectively, and that oil and dispersant compounds have been found in the eggs of white pelicans nesting in Minnesota, Iowa, and Illinois. The National Wildlife Federation said that the oil giant, BP, must be held fully accountable for the environmental damage and that fines and penalties should be used to restore habitats in the Gulf. Meanwhile, in advance of the spill’s fifth anniversary, BP is stepping up its public relations efforts to assure consumers that life is returning to normal in the Gulf.
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Natural Filters: Mussels Deployed
To Clean Up Polluted Waterways

Conservationists and scientists in the U.S. and Europe are working to re-establish declining or endangered freshwater mussel
Eastern elliptio freshwater mussel

An Eastern elliptio mussel
populations so these mollusks can use their natural filtration abilities to clean up pollution in waterways. One such program has been established on the U.S.’s Delaware River, where environmentalists and biologists are reseeding mussel populations in the more polluted sections of the river and in tributary streams. Water companies have expressed interest in these programs in the hope that large populations of freshwater mussels might eventually relieve the companies of some of the burden and expense of mechanical water filtration.
Read the article.
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26 Mar 2015: Pollution May Trigger Heath
Problems in Deep-Water Fish, Study Says

Fish living in deep waters near continental slopes have tumors, liver pathologies, and other health problems that may be
scabbardfish liver cells

Microscopic abnormality in a black scabbardfish liver.
linked to human-generated pollution, researchers report in the journal Marine Environmental Research. They also describe the first case of a deep-water fish species with an “intersex” condition — a blend of male and female sex organs. In the study, which looked at fish in the Bay of Biscay west of France, researchers found a wide range of degenerative and inflammatory lesions in fish living along the continental slope, which can act as a sink for heavy metal contaminants and organic pollutants such as PCBs and pesticides. The fish that live in these deep waters are often extremely long-lived — some can be 100 years old — which allows them to bioaccumulate such contaminants. However, linking the fishes' physiological changes to pollution is preliminary at this time, the researchers said.
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18 Mar 2015: Biodegradable Plastics Are as
Persistent as Regular Plastics, Study Finds

Plastics designed to degrade don't break down any faster than their conventional counterparts, according to research
plastic waste

Plastic accumulated along the Los Angeles River.
published in the journal Environmental Science and Technology. Because most plastics accumulate in landfills and remain intact for decades or longer, some manufacturers have begun producing plastics with proprietary blends of additives that are supposed to make the materials biodegradable, and a number of countries have adopted legislation promoting the use of those additives. But in laboratory tests, researchers found the plastics with biodegradation-promoting additives fared no better than conventional plastics in any of three different disposal scenarios — simulated landfill conditions, compost, and soil burial for three years. Previous research looked at plastics buried in soil for 10 years, the authors note, and found that only 5 percent of the so-called biodegradable plastic decomposed.
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06 Mar 2015: Los Angeles City Council Says
Vegetables Can Be Grown Along Sidewalks

The Los Angeles, California, City Council voted this week to allow residents to grow fruits
lionfish

Planting in a parkway in Los Angeles, Calif.
and vegetables in the small strips of city-owned land between the sidewalk and street. Doing so used to require a $400 permit, essentially preventing lower-income residents from using the green spaces, which are also known as parkways. Community groups have been pushing for many years to do away with the permit fee in hopes of improving low-income communities' access to healthy foods, and the council has been working on the ordinance change for almost two years. The mayor is expected to approve the change next week, and if he does, the ordinance will go into effect in 30 days.
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27 Feb 2015: Growing Risks to India's
Water Supply Mapped With New Online Tool

A new online tool could help water users in India understand the risks to their water supply, which is dwindling and increasingly

Enlarge
India groundwater levels

Groundwater levels
polluted, recent analyses show. The tool, created by 13 organizations including the World Resources Institute, allows users to see where the competition for surface water is most intense, where groundwater levels are dropping significantly, and where pollution levels exceed safety standards. Northwest India, for example, faces extremely high surface water stress as well as low groundwater levels, as this map shows. Overall, 54 percent of India is under high or extremely high water stress, an equal portion is seeing declining groundwater levels, and more 130 million people live where at least one pollutant exceeds national safety standards, according to the World Resources Institute.
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25 Feb 2015: Global Pesticide Map Shows
Large Areas of High Water Pollution Risk

Streams across roughly 40 percent of the planet's land area are at risk of pollution from pesticides, according to

Enlarge
global pesticide pollution risk

Risk for pesticide pollution
an analysis published in the journal Environmental Pollution. Surface waters in the Mediterranean region, the United States, Central America, and Southeast Asia are particularly at risk, according to the study, which produced the first global map of pesticide pollution risk. Taking into account weather data, terrain, pesticide application rates, and land use patterns, the map shows that the risk of pesticide pollution is relatively low in Canada and northern Europe but increases closer to the Equator. More areas are likely to face high pesticide pollution risk as global population grows and the climate warms, the researchers say, because agricultural activity and crop pests will both intensify, likely requiring even higher rates of pesticide use.
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24 Feb 2015: New Map Shows Background
Noise Levels Across the United States

A new map by the U.S. National Park Service (NPS) shows America's quietest and noisiest places. The park service

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U.S. background noise levels

Background noise levels
mapped background noise levels across the country on an average summer day using 1.5 million hours of acoustical data. The quietest areas of the country, such as Yellowstone National Park in Wyoming, are shown in deep blue on this map and are likely as quiet now as they were before European colonization, NPS researchers say. They are collecting the data as part of an effort to determine whether and how wild animals are affected by anthropogenic noise pollution. Owls and bats, for example, rely on hearing faint rustles from insects and rodents, and scientists think human-driven noise could be drowning out those subtle signals in many areas of the country.
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03 Feb 2015: Nine of 10 Cities in China Failed
Air Quality Standards, Government Says

Roughly 90 percent of China's large cities did not meet national air quality standards last year, according to the country's

Smog over the Forbidden City in Beijing, China.
environment ministry. Only eight of the 74 cities monitored by the ministry met standards for pollution metrics such as ozone, carbon monoxide, and fine particle concentrations, according to a report published on the ministry's website. The poor results actually represent an improvement over 2013, when only three of the 74 cities met air quality standards, Reuters reports. Last year, after residents grew increasingly alarmed about air quality in metropolitan areas, China promised to "declare war on pollution" by slashing coal use and closing heavily polluting factories. Still, the government does not expect the national average for fine particle pollution to reach official standards until 2030 or later.
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30 Jan 2015: Thunderstorms Move Ozone
Toward Surface of Earth, Research Shows

Thunderstorms move a significant amount of ozone from the stratosphere down toward the earth's surface — a process

Thunderstorms transport ozone toward earth.
that could have important impacts on climate, according to a recent study in the journal Geophysical Research Letters. Ozone shields the planet from the sun's ultraviolet rays when it's in the stratosphere, the second-lowest layer of the atmosphere, but ozone acts as a powerful greenhouse gas and pollutant when it's nearer to the earth's surface, in the troposphere. The study found that massive thunderheads, which can rise 50,000 feet above the ground, disturb the atmosphere and allow ozone to pour into the troposphere. Scientists had not previously known that storms play a key role in transporting ozone. The new findings could impact climate models, researchers say, especially since storms are expected to become more frequent and intense as the earth warms.
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27 Jan 2015: Pollinator Loss Could Put
Poor Nations at Risk for Malnutrition

Declining pollinator populations could leave as many as half of the people in developing countries facing nutritional deficiencies, according to researchers from the University of Vermont and the Harvard School of Public Health. In the study — the first to link pollinator declines directly to human nutrition — researchers collected detailed data about people's daily diets in parts of Zambia, Mozambique, Uganda, and Bangladesh. They found that in Mozambique, for example, many children and mothers are barely able to meet their needs for micronutrients, especially vitamin A, which is important for preventing blindness and infectious diseases. Fruits and vegetables were an important source of that nutrient for many people in the study, and those crops are highly dependent on pollinators, researchers say — for example, yields of mangoes, which are high in vitamin A, would likely be cut by 65 percent without them. Pollinator losses might also lead to folate deficiency, they say, which is associated with neural tube defects.
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26 Jan 2015: Oil Spills Can Lead to Toxic
Arsenic Water Contamination, Study Says

When petroleum breaks down in underground aquifers, toxic arsenic — up to 23 times the current drinking water

Water sampling at the Minnesota oil-spill test site.
standard — can be released into groundwater, according to a study by U.S. Geological Survey and Virginia Tech researchers, who analyzed samples collected over 32 years from a petroleum-spill research site in Minnesota. Arsenic, a toxin and carcinogen linked to numerous forms of cancer, is naturally present in most soils and sediments, but is not typically a health concern because its chemical properties keep it bound within soil and minerals. However, certain chemical reactions associated with petroleum contamination and microbial activity in low-oxygen environments, such as in aquifers, change the chemical state of the arsenic so that it can enter the groundwater, researchers say.
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21 Jan 2015: Filtering Polluted Stormwater
Through Soil Can Protect Salmon, Study Says

Filtering polluted runoff from urban areas through a simple soil mixture dramatically reduced the water's toxic metal and

A pair of coho salmon.
hydrocarbon content and made it safe for coho salmon and the insects they eat, according to new research. Scientists collected polluted runoff from a four-lane highway in Seattle, then filtered part of the water through a mixture of sand, compost, and shredded bark. Coho salmon and aquatic insects thrived in the filtered stormwater, but they quickly died in the unfiltered water, researchers reported in the journal Chemosphere. Chemical analyses showed that filtering the water through the soil mixture reduced toxic metals by 30 to 99 percent, polyaromatic hydrocarbons to levels at or below detection, and organic matter by more than 40 percent. The research supports the use of rain gardens and other natural stormwater filtration systems, the authors say.
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09 Jan 2015: Most Physicians Already Seeing
Health Effects of Climate Change in Patients

In a survey of physicians in the American Thoracic Society (ATS), the majority of doctors said their patients

Enlarge
health effects of climate change

Results of survey on climate change and patient health
were already experiencing medical conditions associated with climate change and that physicians should be educating their patients and policy makers about climate-related health effects. Seventy-seven percent of ATS physicians — a group of doctors specializing in respiratory health and critical care — said air pollution associated with climate change is exacerbating chronic conditions such as asthma in their patients. Nearly 60 percent reported increases in allergies from plants or mold and injuries from severe weather related to climate change. Many of the physicians who responded to the survey said exposure to smoke from wildfires had caused or worsened lung conditions in their patients, and changes in precipitation and weather patterns seemed to be affecting patients as well, the Huffington Post reports.
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08 Jan 2015: Land Disturbances Darken Snow
And Increase Melt Rate, Researchers Say

Land disturbances, such as agricultural practices and development, may have a big impact on snow purity and

Sampling snowpack in Montana
melt rates, according to a large-scale survey of impurities in North American snow by researchers at the University of Washington. The researchers were particularly interested in the Bakken oil fields of northwest North Dakota. Before undertaking the study, they predicted that diesel emissions and air pollution associated with oil exploration would darken the snowpack, decreasing the amount of sunlight it reflects and increasing its melt rate. They found, however, that while these activities do add soot to the snow, the dirt they stir up adds an equal amount of impurities to the snowpack. Disturbances from clearing oil pads, new housing sites, agricultural activities, and extra truck traffic on unpaved roads add a significant amount of dirt to snowfields, they found.
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17 Dec 2014: Obama Protects Alaska's
Bristol Bay From Oil and Gas Development

President Obama yesterday announced protections for Bristol Bay, Alaska, one

A grizzly bear catches a salmon in Bristol Bay.
of the most productive fishing grounds in the nation, from future oil and gas development. The president's action is expected to benefit commercial fishermen and Native Alaskans and boost conservation efforts in the region, which is roughly the size of Florida. Noting that Bristol Bay is the world's largest sockeye salmon fishery and the source of 40 percent of U.S. wild-caught seafood — a catch worth $2 billion annually — Obama vowed to ensure long-term safeguards for the bay. The region has been under protection intermittently since 1989, when the Exxon Valdez spill prompted a federal moratorium on offshore drilling. "It is a natural wonder, and it’s something that’s just too precious to be putting out to the highest bidder," Obama said in a video message. The federal government is still considering whether to allow development of what would be North America's largest open-pit mine in the bay's watershed.
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19 Nov 2014: Global Maritime Shipping
Traffic Has Grown by 300 Percent Since 1992

Maritime traffic has increased four-fold over the past 20 years, causing more water, air, and noise pollution in

Maritime shipping traffic has increased rapidly.
the world's oceans and seas, according to a new study quantifying global shipping traffic. Traffic went up in every ocean during the 20 years of the study, except off the coast of Somalia, where piracy has almost completely halted commercial shipping since 2006. In the Indian Ocean, where the world’s busiest shipping lanes are located, ship traffic grew by more than 300 percent over the 20-year period, according to the report published in the journal Geophysical Research Letters. Burgeoning ship traffic has increased the amount air pollution, particularly above the Sri Lanka-Sumatra-China shipping lane, where researchers recorded a 50-percent increase in nitrogen dioxide, a common air pollutant, over the 20-year period. Shipping is also a major source of noise pollution, which can be harmful to marine mammals, the authors note.
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18 Nov 2014: Social Media Can Help Track Severity of Air Pollution, Researchers Say

Social media posts can help researchers estimate air pollution levels with significant accuracy, according to a team of computer scientists from the University of Wisconsin. The researchers analyzed posts on Weibo — a Twitter-like site that is China's most popular social media outlet — from 108 Chinese cities over 30 days, tracking how often people complained about the air and the words they used to describe air quality. The study showed that the process can provide accurate, real-time information on the air quality index, a widely used measure of common air pollutants. Large Chinese cities sometimes have physical monitoring stations to gauge pollution levels, but smaller cities generally do not because monitors are expensive to install and maintain. The researchers hope these findings will help residents of smaller towns and less affluent areas understand the severity of their local air pollution. Between 350,000 and 500,000 Chinese citizens die prematurely each year because of air pollution, a former Chinese health minister estimated in the journal The Lancet.
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28 Oct 2014: Scientists Find Seafloor Fallout Plume of Oil from Deepwater Horizon Spill

Researchers say they have found a large fallout plume of oil on the seafloor from the 2010 Deepwater Horizon

Deepwater Horizon oil at the surface of the ocean
disaster in the Gulf of Mexico. According to a report in the Proceedings of the National Academy of Sciences, a portion of the 2 million barrels of oil thought to be trapped in the deep sea after the spill appears to have settled across a 1,250-square-mile patch of the seafloor centered around the Macondo Well, which discharged an estimated 5 million barrels of oil in the nearly three months between its blowout in April and eventual capping in July. The oil is concentrated in the top half-inch of the seafloor, and mostly distributed in patchy deposits to the southwest of the well, the study found. These deposits account for between 4 and 31 percent of the Macondo oil sequestered in the deep ocean, researchers estimate. The rest has likely been deposited outside this area, they say, but has evaded detection so far because of its patchiness.
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27 Oct 2014: Forests Protect Waterways
From Nitrogen Pollution, Researchers Find

Forest top soils capture and stabilize nitrogen pollution very quickly but release it slowly, according to new research published in the journal Ecology. The findings indicate that mature forests may be providing an under-appreciated service by storing excess nitrogen, which can lead to algal blooms and oxygen-depleted dead zones if too much is released into lakes and waterways. Older forests store nitrogen more efficiently than young forests recovering from clear-cuts, the researchers found, because they have accumulated more top soil and organic matter within the forest floor. Previously, it had been unclear how mature forests continued to capture and store nutrients such as nitrogen after they stopped adding tree biomass. The new research indicates it’s likely due to the delay between nitrogen uptake, which happens within days, and nitrogen release, which unfolds over years and decades.
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23 Oct 2014: Drones Can Help Map Spread
Of Infectious Diseases, Researchers Say

Aerial drones can help track changes in the environment that may accelerate the spread of

Researchers in Malaysia program a drone
infectious diseases, an international team of researchers writes in the journal Trends in Parasitology. Land use alterations, such as deforestation or agricultural changes, can affect the movement and distribution of people, animals, and insects that carry disease, the authors explain. One drone project, for example, tracked changes in mosquito and monkey habitats in Malaysia and the Philippines. By combining land-use information collected by drones with public health data, researchers there are hoping to better understand how changes in the environment affect the frequency of contact between people and disease vectors like mosquitoes and macaques, both of which can harbor the malaria parasite.
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17 Oct 2014: Pesticide Linked to Bee Deaths
Does Not Improve Soybean Crops, EPA Finds

Coating soybean seeds with a class of insecticides that has been implicated in honeybee deaths and partially
soybeans coated with neonicotinoids
Soybeans (left) and corn coated with pesticides
banned in the European Union does not increase soybean yields compared to using no pesticides at all, according to an extensive review by the the U.S. Environmental Protection Agency (EPA). Seed treatment provides at most $6 in benefits per acre (an increase in revenue of less than 2 percent), and most likely no financial benefit at all, the EPA analysis concluded. The insecticides, known as neonicotinoids, are only effective for the first few weeks after planting, studies have found, when soybean pests are not typically active. Neonicotinoid seed treatments could theoretically help fend off sporadic and unpredictable pests, the report notes, but that benefit would be small and unlikely to be noticed outside of the southern U.S.
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15 Sep 2014: Urban Air Pollution May
Affect Brains of Young Children, Study Says

Children living in areas with high air pollution are at increased risk for brain inflammation and for developing
Smog over Mexico City

Smog over Mexico City
neurodegenerative conditions such as Alzheimer's and Parkinson's disease, according to a study by researchers at the University of Montana. The scientists compared brain and spinal fluids of children living in low-pollution areas to those of children living in Mexico City, an area notorious for its poor air quality. They found that children living in the city had significantly increased levels of combustion-related metals in their systems, as well as higher levels of antibodies related to inflammation. The antibodies are an indicator of autoimmune response and are possibly tied to higher risks for neurodegenerative conditions such as Alzheimer's and Parkinson's disease, according to the researchers. They say that a study following the Mexico City children as they age is needed to determine whether there is a relationship between their autoimmune responses and documented brain and cognition changes.
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Interview: Making Farm-to-Table
A Truly Sustainable Movement

Renowned chef Dan Barber is synonymous with the farm-to-table movement. His two New York restaurants
Dan Barber
Dan Barber
feature organic ingredients grown or raised on nearby farms, including the one that surrounds his Hudson Valley restaurant. So it’s striking that in his new book, The Third Plate, Barber maintains that the movement he has been championing hasn’t gone far enough. In an interview with Yale Environment 360, Barber says if the farm-to-table movement is to truly support sustainability, end the rise of monocultures, and produce delicious food, it’s the table that must support the farm, not the other way around. And that, he says, calls for a new way of cooking and eating.
Read the interview | Listen to a podcast
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05 Sep 2014: Smog in India Damaged
Enough Crops to Feed 94 Million, Study Says

Ground-level ozone, the main component of smog, damaged 6.7 million tons of Indian crops worth an
Smog in India

Smog in Delhi, India
estimated $1.3 billion in a single year, according to a new study published in Geophysical Research Letters. That's enough wheat, rice and other staple crops to feed 94 million people — roughly one-third of the country's impoverished population. Arising from a combination of vehicle emissions, cooking stoves, and industrial sources, plant-damaging ozone has left many of India's fast-developing cities among the most polluted in the world, according to the country's Air Monitoring Center. The number of vehicles there has nearly tripled in the past 10 years, rising from 50 million in 2003 to 130 million in 2013, and the country currently has no air quality standards to protect crops from ozone pollution. The researchers say the findings should be used to guide new ozone emission standards for the country.
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29 Aug 2014: New Database Tracks Ecological
Health Impacts of Dams on World's Rivers

A newly launched online database illustrates the impacts of nearly 6,000 dams on the world's 50 major

Click to Enlarge

Dams in the Yangtze basin
river basins, ranking their ecological health according to indicators of river fragmentation, water quality, and biodiversity. The "State of the World's Rivers" project was developed by the advocacy organization International Rivers and created using Google Earth. Users can compare the health of individual river basins, see the locations of existing and planned dams, and explore 10 of the most significant river basins in more depth. The 6,000 dams represented in the database are a small percentage of the more than 50,000 large dams that impact the world's rivers, the organization notes.
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25 Aug 2014: Health Care Savings Can Far
Outweigh Costs of Carbon-Cutting Policies

Implementing policies to curb carbon emissions dramatically cuts health care costs associated with poor air quality — in some cases, by more than 10 times the cost of policy implementation, according to new research published in Nature Climate Change. Policies aimed at reducing carbon emissions are as effective as laws targeting polluting compounds like ground-level ozone, also known as smog, and fine particulate matter, the MIT researchers say. An analysis of three climate policies — a clean-energy standard, a transportation policy, and a cap-and-trade program — found that savings from avoided health problems could recoup 26 percent of the cost of implementing a transportation policy, and up to to 10.5 times the cost of implementing a cap-and-trade program. A cap-and-trade program would cost roughly $14 billion to implement, whereas a transportation policy with rigid fuel-economy requirements could cost more than $1 trillion, according to the analysis.
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14 Aug 2014: Some Chemicals in Fracking
Fluids Raise Red Flags, Researchers Say

Of the more than 200 compounds used in hydraulic fracturing fluids, eight are toxic to mammals and the

A Marcellus Shale fracking operation
health risks of roughly one-third are unknown, according to researchers at Lawrence Berkeley National Lab. Hydraulic fracturing, also known as fracking, is a drilling technique that releases natural gas and oil by injecting fluids with chemical additives deep into rock formations. The research team tracked down substances commonly used as fracking additives and found they include gelling agents to thicken the fluids, biocides to inhibit microbial growth, and compounds to prevent pipe corrosion. The industry claims the additives are non-toxic and food-grade, and while that is true in some cases, the researchers note, most fracking compounds require treatment before they can be safely released into the environment. Moreover, a number of chemicals that could pose health risks, such as corrosion inhibitors and biocides, are used in reasonably high concentrations in fracking fluids, the researchers note.
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