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Tag: "gases" at biology news

Smoking ban dramatically reduces air pollution in Irish pubs

...e levels of fine-particulate matter, chemicals and gases in the air and improve bar workers' health." If all European countries were to adopt a similar policy, she estimates that between 5 to 10 million premature deaths from smoking could be prevented over the next generation. Although Dr. Godfrey a...

Scientists uncover link between ocean's chemical processes and microscopic floating plants

...e organisms, their ecosystems and climate-relevant gases are unknown." During the study, concentrations of dimethyl sulfide (DMS) and chloroiodomethane, produced by phytoplankton in ocean water, were measured. "In the atmosphere, DMS is rapidly oxidized to sulfur dioxide, which can form sulfate aerosol...

Helium helps patients breathe easier

...evere COPD were each given four different mixes of gases including room air, while they exercised. During each test they were monitored for exercise time, breathing capacity, work of breathing and symptoms of exertion. The best results were achieved with a mix of 40 per cent oxygen and 60 per cent helium. ...

Confirmed -- deforestation plays critical climate change role

...ions needed to reduce concentrations of greenhouse gases in the atmosphere. "Globally, we need a range of actions to reduce the build up of carbon in the atmosphere," Dr Canadell says. "This study ensures we have a sound scientific basis behind the consideration of deforestation reduction."...

Arctic ice retreating more quickly than computer models project

...creasingly rapid pace and the impact of greenhouse gases is growing," says NCAR scientist Marika Holland, o...t of increased carbon dioxide and other greenhouse gases in the atmosphere. Whereas the models indicate that about half of the ice loss from 1979 to 2006 was...

Researchers examine carbon capture and storage to combat global warming

...ne hopes. If we're going to be creating greenhouse gases for another hundred years, it's a huge problem right now, so you have to get on this point. But nonetheless, our dependence on fossil fuels is not going to last forever.''...

Soils offer new hope as carbon sink

...tential of agricultural soils to reduce greenhouse gases and increase production at the same time has been ...ty was raised," he said. The trials also measured gases given off from the soils and found significantly lower emissions of carbon dioxide and nitrous oxide...

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