Greenhouse gases highest for 800,000 years
May 15, 2008 08:15 AM - Reuters
Greenhouse gases are at higher levels in the atmosphere than at any time in at least 800,000 years, according to a study of Antarctic ice on Wednesday that extends evidence that mankind is disrupting the climate. Carbon dioxide and methane trapped in tiny bubbles of air in ancient ice down to 3,200 meters (10,500 ft) below the surface of Antarctica add 150,000 years of data to climate records stretching back 650,000 years from shallower ice drilling.
IdleAire: Reducing Trucker's Environmental Impact
May 14, 2008 09:07 AM - , Triple Pundit
If you've ever been on a road trip, you've probably seen this sight at a rest stop: one, or many big rig trucks, just...idling. Not going anywhere. What is this, like a computer on "sleep," ready to go? No. The answer may surprise you. At least in the US, truck drivers are required to rest 10 hours for every 11 driven. A reasonable thing, but this often necessitates them sleeping in their cabins. And that requires power for the heating or cooling, and other comforts of "home" on the road. Power that comes from a running truck.
Study sees threat from big-particle pollutants
May 14, 2008 08:15 AM - Reuters
On days when there is a lot of dust and other large-particle pollutants in the air, slightly more elderly people go to hospital emergency rooms with heart problems, U.S. researchers said on Tuesday. There was also an increase in hospital visits by elderly patients complaining of respiratory illnesses when "coarse," or large, particle pollution was plentiful, although the rise was not significant, the researchers said.
Carbon monoxide aids shift from active infection to a drug-resistant dormant TB infection
May 13, 2008 09:04 AM - University of Alabama at Birmingham
A toxic gas present in air pollution and tobacco smoke plays a significant role in triggering tuberculosis infection, according to a new study from researchers at the University of Alabama at Birmingham (UAB). The UAB study focused on carbon monoxide (CO), a colorless, odorless gas present in tobacco smoke, and vehicle and manufacturing plant emissions. Also, CO is produced naturally in brushfires and volcanic gas.
Clearing the Air on Liquid Natural Gas (Updated)
May 12, 2008 09:08 AM - , Triple Pundit
Every month when I see the magazine Seed in my mailbox I can’t wait to sit down and read it. This month I found a DVD inside the magazine with the oil company Shell’s short movie, Clearing the Air on it. My attention peaked, and I watched the movie. Clearing the Air is a fictional account of the development of gas to liquid (GTL) or liquid natural gas (LNG). The California Energy Commission defines LNG as “fuels that can be produced from natural gas, coal, and biomass using a Fischer-Tropsch chemical reaction process.”Ě However, in the movie LNG is used to refer to converting natural gas into liquid for fuel.
Koalas Under Threat From Climate Change
May 9, 2008 09:26 AM - Australian Academy of Science
New research shows increased temperatures and carbon dioxide levels are a threat to the Australian national icon, the koala. Professor Ian Hume, Fellow of the Australian Academy of Science, and his students from the University of Sydney have been researching the effects of CO2 increases and temperature rises on eucalypts.
Kick the oil habit and make your own ethanol
May 9, 2008 07:00 AM - Reuters
A new company hopes drivers will kick the oil habit by brewing ethanol at home that won't spike food prices. E-Fuel Corp unveiled on Thursday the "MicroFueler" touting it as the world's first machine that allows homeowners to make their own ethanol and pump the brew directly into their cars.
High fuel prices could slash US emissions.
May 8, 2008 08:59 AM - New Scientist
HIGH gasoline prices could lead to a dramatic saving in US greenhouse-gas emissions. That’s the conclusion of economists in the US, who suggest high fuel prices are turning consumers off SUVs and onto smaller, more fuel-efficient vehicles. What’s more, car owners are predicted to cut back on driving in order to save money. Together, these changes in consumer behaviour could make an important dent in the US contribution to global warming, reducing annual carbon dioxide emissions by tens of millions of tonnes per year. The impact will be dramatic, says Chris Knittel, an economist at the University of California, Davis, who was involved in one of the studies.
Airline emissions 'far higher than previous estimates'
May 8, 2008 07:57 AM - , The World Business Council for Sustainable Development (WBCSD)
The aviation industry's failure to curb its soaring carbon emissions could lead to the "worst case scenario" for climate change, as envisaged by the United Nations. An unpublished study by the world's leading experts has revealed that airlines are pumping 20 per cent more carbon dioxide into the atmosphere than estimates suggest, with total emissions set to reach between 1.2 billion and 1.5 billion tonnes annually by 2025.
Consumer group ranks companies on emissions efforts
May 8, 2008 07:50 AM - , The World Business Council for Sustainable Development (WBCSD)
Consumer companies are getting greener, but they are still quite carbon-intensive, according to a study to be released today. Nonprofit group Climate Counts will release its second annual rankings of 56 consumer companies today on how they measure greenhouse gas emissions, their plans to reduce them and how fully they disclose their efforts.