Tag Archives: air pollution

UMD-led Study Indicates India Is Replacing China as World’s Top Source of Sulfur Dioxide Air Pollution

COLLEGE PARK, Md.  – A new University of Maryland-led study finds that China’s sulfur dioxide emissions have fallen by 75 percent since 2007, while India’s emissions increased by 50 percent. The results suggest that India is becoming, if it is not already, the world’s top emitter of sulfur dioxide, an air pollutant that causes acid rain, haze and many health-related problems. It is produced predominantly when coal is burned to generate electricity. (more…)

Read More

Fighting Air Pollution in China with Social Media

Study shows limits of ‘liberation technology’ in advancing change

COLUMBUS, Ohio – The serious air pollution problem in China has attracted the attention of online activists who want the government to take action, but their advocacy has had only limited success, a new study has revealed. (more…)

Read More

China’s chance to reinvent itself environmentally

China’s 34-year-old Environmental Protection Law was created when it made sense for legislators in a developing country to trade environmental well-being for a boost to the gross domestic product.

Today, China wrestles with pollution that is leaving its citizens gasping for clean air, worried about water quality and concerned for the safety of the food grown there. In the current issue of Science, a team of researchers, including a Michigan State University sustainability expert, offers guidelines for revising the EPL to protect both humans and nature. (more…)

Read More

Plumes across the Pacific Deliver Thousands of Microbial Species to West Coast

A surprising number of microorganisms – more than 100 times more kinds than reported just four months ago – are leaping the biggest gap on the planet. Hitching rides in the upper troposphere, they’re making their way from Asia across the Pacific Ocean and landing in North America.

For the first time researchers have been able to gather enough biomass in the form of DNA to apply molecular methods to samples from two large dust plumes originating in Asia in the spring of 2011. The scientists detected more than 2,100 unique species compared to only 18 found in the very same plumes using traditional methods of culturing, results they published in July. (more…)

Read More

Ecosystem Effects of Biodiversity Loss Could Rival Impacts of Climate Change, Pollution

ANN ARBOR, Mich.— Loss of biodiversity appears to impact ecosystems as much as climate change, pollution and other major forms of environmental stress, according to a new study from an international research team.

The study is the first comprehensive effort to directly compare the impacts of biological diversity loss to the anticipated effects of a host of other human-caused environmental changes.

The results highlight the need for stronger local, national and international efforts to protect biodiversity and the benefits it provides, according to the researchers, who are based at nine institutions in the United States, Canada and Sweden. (more…)

Read More

Rising Air Pollution Worsens Drought, Flooding UMD-Led Study Shows

COLLEGE PARK, Md. – Increases in air pollution and other particulate matter in the atmosphere can strongly affect cloud development in ways that reduce precipitation in dry regions or seasons, while increasing rain, snowfall and the intensity of severe storms in wet regions or seasons, says a new study by a University of Maryland-led team of researchers.

The research provides the first clear evidence of how aerosols — soot, dust and other small particles in the atmosphere — can affect weather and climate; and the findings have important implications for the availability, management and use of water resources in regions across the United States and around the world, say the researchers and other scientists. (more…)

Read More

Link Between Air Pollution and Cyclone Intensity in Arabian Sea

*Disruption of wind shear enables stronger storms*

Pollution is making Arabian Sea cyclones more intense, according to a study in this week’s issue of the journal Nature.

Traditionally, prevailing wind shear patterns prohibit cyclones in the Arabian Sea from becoming major storms.

The Nature paper suggests that weakening winds have enabled the formation of stronger cyclones in recent years–including storms in 2007 and 2010 that were the first recorded storms to enter the Gulf of Oman. (more…)

Read More