ottobre, 2011

Workshop in Natural Dyeing

Workshop in Natural Dyeing

Natural Dyes Stefano Panconesi 4-6 November 2011 The course aims to introduce the participants into the wonderful world of natural dyes will use the historical dyeing plants dried and wild plants collected in the territory; dye yarn and fabric in various fibers: wool, silk, cotton, linen, etc. we’ll see how the color will change with the variation of mordent, the pH of the bath. will dye...

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Unprecedented Arctic ozone loss in 2011

Chemical ozone destruction occurs over both polar regions in local winter–spring. In the Antarctic, essentially complete removal of lower-stratospheric ozone currently results in an ozone hole every year, whereas in the Arctic, ozone loss is highly variable and has until now been much more limited. Here we demonstrate that chemical ozone destruction over the Arctic in early 2011 was – for...

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Carbon Capture Machine

Carbon Capture Machine

David Keith is a bit fidgety. Maybe that’s because venture capitalists have asked to come see his carbon dioxide machine. Maybe it’s because the project is running months behind schedule, as experiments so often do. Maybe it’s because his critics say it’ll never work. Or maybe it’s a taste of excitement, because it seems entirely possible that the trailer-truck-size...

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China mulls tax on resources

China mulls tax on resources

China is taking steps towards imposing a resources tax for the first time, countering assertions by the mining magnate Andrew Forrest at a rally in Perth yesterday. Mr Forrest, chief executive of the iron ore miner Fortescue Metals, held up China as an exemplary economy that was turning its back on communism by lowering resources taxes. ”In China right now there’s a fierce debate...

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Climate Change Trends

Climate Change Trends

Climate Change Trends: Carbon Emissions Giants Right now, 10 countries — including the U.S., China and Russia — are responsible for 80 percent of the world’s carbon dioxide emissions. The United States is the world’s second largest emitter (China ranks no. 1), sending around 5.8 million metric tons of CO2 into the atmosphere a year. That’s the equivalent to a year’s...

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