Pollution

Air pollution linked to blood vessel damage in healthy young adults
October 26, 2016 03:06 PM - American Heart Association

Fine particulate matter air pollution may be associated with blood vessel damage and inflammation among young, healthy adults, according to new research in Circulation Research, an American Heart Association journal.

“These results substantially expand our understanding about how air pollution contributes to cardiovascular disease by showing that exposure is associated with a cascade of adverse effects,” said C. Arden Pope, Ph.D., study lead author and Mary Lou Fulton Professor of Economics at Brigham Young University in Provo, Utah.

How Pollution Is Devastating an Indonesian Lake
October 26, 2016 08:59 AM - Binsar Bakkara via Yale Environment 360

Uncontrolled fish farming, population growth, and logging have all taken a toll on Indonesia’s Lake Toba. Photographer Binsar Bakkara returns to his home region to chronicle the environmental destruction. 

More than 1,500 tons of fish suddenly turned up dead in Indonesia’s largest lake earlier this year, a mass asphyxiation from a lack of oxygen in the water caused by high pollution levels. The event threatened the livelihoods of hundreds of fish farmers and the drinking water for thousands of people, and it shed light on the rapidly declining conditions in Lake Toba, the largest volcanic lake in the world. 

The Methane Riddle: What Is Causing the Rise in Emissions?
October 25, 2016 09:34 AM - Yale Environment 360

The stomachs of cattle, fermentation in rice fields, fracking for natural gas, coal mines, festering bogs, burning forests — they all produce methane, the second most important greenhouse gas, after carbon dioxide. But how much? And how can we best cut these emissions? And is fracking frying the planet, or are bovine emissions more to blame? 

Globally Averaged CO2 Levels Reach 400 parts per million in 2015
October 25, 2016 07:11 AM - World Meteorological Organization

Globally averaged concentration of carbon dioxide in the atmosphere reached the symbolic and significant milestone of 400 parts per million for the first time in 2015 and surged again to new records in 2016 on the back of the very powerful El Niño event, according to the World Meteorological Organization's annual Greenhouse Gas Bulletin.

Amazon Study Reveals that Rainstorms Transport Atmospheric Particles Essential for Cloud Formation
October 24, 2016 01:10 PM - Brookhaven National Laboratory

Understanding how tiny particles emitted by cars and factories affect Earth's climate requires accurate climate modeling and the ability to quantify the effects of these pollutant particles vs. particles naturally present in the atmosphere. One large uncertainty is what Earth was like before these industrial-era emissions began. In a paper just published in Nature, scientists collaborating on the GoAmazon study describe how they tracked particles in the largely pristine atmosphere over the Amazon rainforest, which has given them a way to effectively turn back the clock a few hundred years.  

Protecting people and planet from "invisible killer" is focus of UN health campaign to tackle air pollution
October 20, 2016 04:50 PM - United Nations News Centre

The United Nations World Health Organization (WHO) in partnership with the Coalition for Climate and Clean Air (CCAC) and the Government of Norway has launched a global awareness campaign on the dangers of air pollution – especially ‘invisible killers’ such as black carbon, ground-level ozone and methane – for the health of individuals and the planet.

Titled BreatheLife: Clean air. A healthy future, the campaign aims to mobilize cities and their inhabitants on issues of health and protecting the planet from the effects of air pollution. Moreover, By WHO and CCAC joining forces, ‘BreatheLife’ brings together expertise and partners that can tackle both the climate and health impacts of air pollution.

Reducing ammonia pollution from cattle
October 19, 2016 04:13 PM - Luciano Barreto Mendes via International Institute for Applied Systems Analysis

Agriculture is responsible for 90% of all ammonia pollution in Europe, a considerable part of which comes from cattle manure management: a new study shows what steps to take to reduce this pollution.

Improved barn design, cleaning processes, and manure treatment could reduce ammonia emissions from commercial dairy cattle barns by 17 to 50%, according to a new study published in the journal Science of the Total Environment. The study provides a list of techniques and technologies that could provide the greatest reductions in ammonia emissions.

Salty snow could affect air pollution in the Arctic
October 13, 2016 08:03 PM - American Chemical Society

In pictures, the Arctic appears pristine and timeless with its barren lands and icy landscape. In reality, the area is rapidly changing.  Scientists are working to understand the chemistry behind these changes to better predict what could happen to the region in the future. One team reports in ACS’ Journal of Physical Chemistry A that sea salt could play a larger role in the formation of local atmospheric pollutants than previously thought.

Scientists creating super grass to cut methane emissions from cows
October 13, 2016 02:02 PM - Yale Environment 360

Danish scientists are developing a grass that will cut down how often cows burp and pass gas — reducing the amount of methane, a potent greenhouse gas, they release into the atmosphere.

Pew: Renewable energy enjoys wide support while fossil fuels divide national opinion
October 12, 2016 12:39 PM - Robert Walton

Pew Research's "Politics of Climate" survey is a mixed bag for energy industry watchers, revealing a solid chunk of Americans support expanded fossil fuel use, while almost everyone supports renewables.

"One spot of unity in an otherwise divided environmental policy landscape is that the vast majority of Americans support the concept of expanding both solar and wind power," the think tank said in a blog post. "The public is more closely divided when it comes to expanding fossil fuel energies such as coal mining, offshore oil and gas drilling, and hydraulic fracturing for oil and natural gas."

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