The EcoTipping Points Project Long famous for its cathedral, university, and cuckoo clocks, Freiburg is now also famous as a “Green City.” It excels in the areas of transportation, energy, waste management, and land conservation, and has created a green economy that perpetuates even more environmental progress. Photo: Courtesy Freiburg Wirtschaft Touristik u. Messe GmbH Freiburg, a city of about 220,000 people and 155 km2 of land, is located in the southwest corner of Germany, at the edge of the Black Forest and near the borders with France and Switzerland. It was founded in the year 1120, and through the centuries of growth and modernization still maintains its Old World charm and surrounding beauty.
Food Science Network Ozone (O3) is a naturally occurring, pale blue gas that makes up the familiar UV- shielding “ozone layer” in the Earth’s stratosphere. Unlike oxygen molecules (O2), ozone molecules are composed of 3 oxygen atoms (O3) instead of the two. Ozone is an unstable gas that readily decomposes into oxygen and it has a half-life of only 20 minutes in room temperature water. Ozone is formed naturally through the electrical discharge produced by lightning or when the sun’s ultra-violet rays reacts with the Earth’s stratosphere. Ozone can also be produced commercially with the help of ozone generators. Ozone generators produce ozone by creating an electrical discharge across a flow of either pure oxygen or air.
Organic Consumers Association: Millions Against Monsanto Campaign President Obama knows that agribusiness cannot be trusted with the regulatory powers of government. On the campaign trail in 2007, he promised: We'll tell ConAgra that it's not the Department of Agribusiness. It's the Department of Agriculture. We're going to put the people's interests ahead of the special interests.
Database of radiological incidents and related events compiled by Wm. Robert Johnston last modified 20 January 2014 Contents Introduction: Climate Change Journals and Magazines on environmental-expert.com Current filtering criteria You can remove a filter by clicking on the x Keyword: climate change × Climatic Change by Springer Bacterial Communities Associated with the Surfaces of Fresh Fruits and Vegetables Fresh fruits and vegetables can harbor large and diverse populations of bacteria. However, most of the work on produce-associated bacteria has focused on a relatively small number of pathogenic bacteria and, as a result, we know far less about the overall diversity and composition of those bacterial communities found on produce and how the structure of these communities varies across produce types. Moreover, we lack a comprehensive view of the potential effects of differing farming practices on the bacterial communities to which consumers are exposed.
Sustainable development and much more According to Climate Progress : ” In 2004, Princeton Profs Socolow and Pacala published a paper in Science, “Stabilization Wedges: Solving the Climate Problem for the Next 50 Years with Current Technologies.” ” (…) I spoke to Socolow today at length, and he stands behind every word of that — including the carefully-worded title. Indeed, if Socolow were king, he told me, he’d start deploying some 8 wedges immediately.
Tandem silicon-perovskite solar cells could provide solar power on the cheap By combining silicon solar cells with their cheap and efficient perovskite-based counterparts, researchers at Stanford and MIT are creating a new type of "tandem cell" that could reach efficiencies up to 35 percent. Out of all the solar cell technologies discovered so far, perovskite certainly takes the cake as the fastest-growing and one of the most promising for the future. In just a few years of development, perovskite-based cells have gone from efficiencies in the low single digits to a respectable 20 percent.