Posts Tagged ‘carbon emissions’
Earth & Environment - Aug 11, 2009 4:00 - 0 Comments
Beijing air sets Olympic gold standard
Above, a view of northwest Beijing on a clear day and, below, on a smoggy day.
Earth & Environment - Jul 14, 2009 17:12 - 0 Comments
Divvying up fair share of carbon emissions
“Most of the world’s emissions come disproportionately from the wealthy citizens of the world, irrespective of their nationality,” says physicist Shoibal Chakravarty, noting that many emissions come from lifestyles that involve airplane flights, car use and the heating and cooling of large homes. “We estimate that in 2008, half of the world’s emissions came from just 700 million people.”
Earth & Environment - Jun 19, 2009 9:02 - 0 Comments
Ice cores show fossil fuels disrupt nitrogen cycle
Scientists extracted a 100-meter-long ice core in Greenland to measure how fossil fuel burning of industrial times has disrupted the global nitrogen cycle. At left is Meredith Hastings of Brown University, the lead author of the study, accompanied by Bella Bergeron from Ice Coring and Drilling Services. (Credit: Meredith Hastings/Julia Jarvis)
Earth & Environment - Jun 17, 2009 9:55 - 0 Comments
Modern dairy farms produce ‘greener’ milk
CORNELL (US)—By improving dairy genetics, nutrition, herd management, and animal welfare, the dairy industry has reduced its carbon footprint over the past 60 years, according to a study from Cornell University. (more…)
Earth & Environment - Apr 20, 2009 10:54 - 1 Comment
Locally grown, but is that lettuce really ‘green’?
U. CHICAGO (US)— When it comes to food, local is where it’s at for those concerned about their carbon footprint. But Pamela Martin from the University of Chicago says the idea that local foods are more sustainable is really just an assumption. She and her students are crunching the numbers, determined to find out if regional agriculture really does have a green edge over conventional framing. (more…)
