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已读[174] 发布: 2013/07/10 16:39:52
Atikokan Progress About 68 gallons (309 litres) of Agent Orange was sprayed on 256 acres (a little over 100 hectares) of forest west of here in two separate MNR forest treatment projects in August, 1973. Those details are contained in the report of the independent fact ... and more »
已读[173] 发布: 2013/07/10 16:39:49
ScienceAlert While the concentration of volatile organic compounds in modern buildings is generally quite low, there's growing evidence that continued chronic exposure to even low levels of these chemicals may result in the condition known as sick building syndrome ... and more »
已读[172] 发布: 2013/07/10 16:39:44
The Seattle Times Other farmers in Washington are using compost and cover crops to build soil carbon and fertility, and in the process spending less on chemical fertilizers and irrigation. Researchers are grooming new perennial crops to replace annuals to build soil ...
已读[156] 发布: 2013/07/10 16:39:36
Wunderground.com (blog) Not only that, but recent research from the U.S. Forest Service and several American and Australian universities shows that the process can be done with minimal damage to animal and bird diversity, soil chemical composition and other ecological concerns. and more »
已读[154] 发布: 2013/07/10 16:39:31
Public Radio International PRI In previous decades, the Tongass National Forest was a boon for logging companies and a source of local jobs in Hydaburg, until recent legislation put a stop to mass logging. Some 35 miles away, at the foot of Bokan Mountain on the shore of Kendrick ...
已读[164] 发布: 2013/07/10 16:39:22
Lynchburg News and Advance It would be the first outright ban on a process that has come to be known as fracking in a national forest . Conventional and horizontal fracking are already occurring in some national forests. Fracking uses water and a mixture of chemicals to extract ... and more »
已读[166] 发布: 2013/07/09 22:44:31
而受益行业复苏等因素,林产化学品行业的相关上市公司有望在中报中表现良好,建议重点关注:青松股份和元力股份。另外,经济转型及可持续发展的要求使得节能减排在"十二五...
已读[164] 发布: 2013/07/09 22:43:49
Minnesota Public Radio Suburban sprawl, mowing and farm chemicals have reduced the population of milkweed, the only plant where Monarchs place eggs. A generation of Monarchs may have been lost, says Elizabeth Howard, director and founder of the Monarch research ... and more »
已读[164] 发布: 2013/07/09 22:43:25
The Conversation While the concentration of volatile organic compounds in modern buildings is generally quite low, there's growing evidence that continued chronic exposure to even low levels of these chemicals may result in the condition known as sick building syndrome ...
已读[198] 发布: 2013/07/09 22:43:21
National Science Foundation (press release) Prolonged droughts on several continents, increasing stresses on natural and managed ecosystems, losses of agricultural and forest productivity, degraded ocean and permafrost habitats, global sea-level rise, the rapid retreat of ice sheets and glaciers ...
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