Dr.Brook, who chaired group that produced a scientific statement on air pollution and cardiovascular disease for the American Heart Association.

VOA: standard.2010.08.04

Medical science, bolstered by research from the U.S.Environmental Protection Agency, shows a strong link between air pollution and heart disease and stroke.

VOA: standard.2010.08.04

After all,using cars to move goods causes a lot of carbon air pollution and traffic jams."

VOA: standard.2010.01.04

Engineers have found that wetlands, grassy fields and soil or sand filters can take in stormwater with different levels of pollution and release water with a relatively constant cleanliness.

VOA: standard.2010.08.04

A carbon footprint is the amount of carbon dioxide pollution that we produce as a result of our activities.

VOA: special.2011.04.05

His sculpture also makes a statement about the harmful effects that waste and pollution have on the environment.

VOA: special.2009.11.13

But he hopes to raise billions through a system in which businesses that release greenhouse gases would buy and trade pollution permits.

VOA: special.2009.02.27

The idea offers a way to cut pollution, save money and energy, and make the neighbors happy.

VOA: special.2009.09.08

Race cars burn a lot of fuel, and create a lot of air pollution.

VOA: special.2009.11.03

She has donated the $150,000 prize to nonprofit organizations so others can keep a close eye on pollution from livestock waste in their communities.

VOA: standard.2010.05.06

Costs aside,you'll find a lot of basic skepticism at the Farm Bureau and among farmers like Gwen Pitt that human pollution is responsible for climate change.

VOA: standard.2009.12.12

Skeptics argue,however, that rising temperatures and warmer oceans are part of a natural cycle and are not convinced the changes are a result of man's pollution.

VOA: standard.2009.05.03

WMO says a warming climate can exacerbate air pollution.

VOA: standard.2009.03.23

most sweeping emissions trading system companies would have to buy permits for every ton of carbon they emit, a system designed to provide financial incentives for those that reduce their pollution.

VOA: standard.2009.05.03

Bigger livestock herds are putting greater pressure on land resources and disrupting some ecosystems and the animals generate significant amounts of water and air pollution, including methane, a climate-changing greenhouse gas.

VOA: standard.2010.02.22

"It is really pollution from our own use of space. Over the last 50 years we have been a bit careless, just as we have been careless with our oceans and rivers over centuries and polluted them.

VOA: standard.2010.07.24