How Much Is Too Much?: Estimating Greenhouse Gas Emissions
To avoid catastrophic climate change, the world will need to emit less than one trillion metric tons of carbon between now and 2050, according to two new papers published in Nature today. In other words, there is only room in the atmosphere to burn or vent less than one quarter of known oil, natural gas and coal reserves. [More] rss.sciam.com |
Go Ahead, Play With (and on) the Art
With a city park installation, an artist blurs distinctions between sculpture and environment. nytimes.com |
The Future of Farming
[Below is the original script. But a few changes may have been made during the recording of this audio podcast.]We may be running out of dirt. The intensive farming of recorded history, accelerated by the last several decades of industrial agriculture, now strips the soil of some 20 tons of dark, rich organic matter per hectare per year. [More] rss.sciam.com |
EPA Draft Greenhouse Gas Rule Focuses on Large Emitters
U.S. EPA has sent a draft rule to the White House that could limit regulations on greenhouse gas emissions to cover only very large industrial sources.The agency yesterday submitted a rule to the White House Office of Management and Budget that experts say will likely limit strict permitting requirements to industrial sources of more than 25,000 tons a year of carbon dioxide equivalent. [More] rss.sciam.com |
Baked Australia: Water Management Lessons for the World from Down Under
Another summer is heating up Down Under, and the forecast looks as worrisome and as potentially deadly as last summer's. A decade of drought is parching landscapes, devastating farmers , killing gum trees, and forcing a new definition of conservation into the continental nation's colorful lexicon. Could Australia see a day when a bottle of water is worth more than a bottle of Shiraz? [More] rss.sciam.com |