Word: co2
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...technological progress is translating into environmental gains, take a trip to the research campus of Lafarge, just outside the French city of Lyons. The world's largest cement company, with sales of $22.5 billion in 2007, Lafarge has set itself the goal by 2010 of cutting its net CO2 emissions for every ton of cement it produces to 20% below the 1990 level. But it is also steaming ahead with research efforts into smarter, stronger and less polluting products, including ultra-high-performance concrete. Research director Casanova traces the path of innovation back to the 1980s, when the first...
Biochar's ability to sequester CO2 has given new urgency to such research. "Reducing emissions isn't enough - we have to draw down the carbon stock in the atmosphere," says Tim Flannery, chair of the Copenhagen Climate Council, a consortium of scientists and business leaders linked to next year's United Nations Climate Summit. "And for that, slow pyrolysis biochar is a superior solution to anything else that's been proposed." Cornell's Lehmann is even more emphatic. "If biochar could be massively applied around the globe," he says, "we could end the emissions problem in one to two years...
...very important ways. Rare plants and animals, many still undiscovered, depend on the forests - especially the rich rain forests that encircle the earth either side of the equator. When the forests disappear, all that wildlife disappears as well. But trees also contain carbon, and while they live, they absorb CO2 from the atmosphere, compensating in part for the greenhouse gases spewed into the air from cars, power plants and factories. When trees are cut down or burned, that carbon is put back into the atmosphere, accelerating climate change. At least 20% of annual global carbon emissions come from deforestation...
...issue, and if companies don't address it, they will have problems with their license to operate and grow." His business council has been working with most of the leading players in the cement, metals and mining, and electric-utility industries to define specific targets for such things as CO2 emissions and responsible use of fuels and materials that the firms then commit to meet...
...sense of how technological progress is translating into environmental gains, take a trip to Lafarge's research campus, just outside the French city of Lyons. The world's largest cement company, Lafarge has set itself a goal: by 2010, it will cut its net CO2 emissions for every ton of cement it produces to 20% below the 1990 level. But it is also steaming ahead with research into smarter, stronger and less polluting products, including ultra-high-performance concrete. Research director Casanova traces the path of innovation back to the 1980s, when the first big gains were made in increasing...