Sunday, November 28, 2010

A High-Yield Biomass Alternative to Petroleum for Industrial Chemicals

 A team of University of Massachusetts Amherst chemical engineers report in November 25 issue of Science that they have developed a way to produce high-volume chemical feedstocks including benzene, toluene, xylenes and olefins from pyrolytic bio-oils, the cheapest liquid fuels available today derived from biomass. The new process could reduce or eliminate industry's reliance on fossil fuels to make industrial chemicals worth an estimated $400 billion annually.

Friday, November 26, 2010

Mexico eyes climate funds for locally run forests

Local landowners collectively running a small lumber yard in the pine forests of central Mexico say they are making profits from logging and cutting carbon emissions at the same time.
Eleven communities share one sawmill in the town of Agua Bendita, processing planks for furniture and construction and earning enough to convince them that saving the forest is better than clear-cutting for agriculture.
Global warming, pollution and the future of forests will dominate the agenda when Mexico hosts nearly 200 nations in Cancun from November 29 to December 10 to try to put U.N. climate talks back on track after inconclusive discussions last year.
The cutting and burning of deforestation makes up about 10 percent of human greenhouse gas emissions, which scientists say are causing rising sea levels and extreme weather.
Rich nations are pledging money to a U.N.-backed forest protection scheme to reduce emissions from deforestation and degradation -- REDD -- that could lead to a global trade in carbon credits worth $30 billion a year.
Selectively logged and managed forests capture more carbon on average than national parks, said a study released this week by Rights and Resources Initiative and the Mexican Civil Council for Sustainable Forestry, two groups that support forest collectives.
New trees cultivated after controlled cutting capture more carbon than purely old-growth forests, the study said.
Mexico has several issues that complicate the efforts.
Unlike the rest of the world, where governments largely own forested land, nearly three-quarters of Mexico's wilderness is divided into plots of group-owned property, a legacy of land reforms after the Mexican revolution in the early 1900s.
For now, most Mexicans living off the forest struggle to make ends meet. Because of the slow pace of international talks, it will be a long time until REDD-related aid flows to cooperatives like Agua Bendita, or "holy water."
"Deforestation is an economic decision. The property owner wants to change the land use precisely because the forest does not give him enough income," said Juan Torres, the head of Mexico's national forest commission.
The government has a program in 5.7 million acres (2.3 million hectares) across the country to pay a small stipend in exchange for forest protection.

Monday, November 8, 2010

German protesters mobilise against nuclear waste train

German police scuffled with protesters as tens of thousands of people gathered in Dannenberg, northern Germany, vowing to block a nuclear waste convoy arriving from France.
read here