Examination of research into pole alternatives indicates that, without exception, studies have found that total energy requirements associated with wood materials are considerably lower than those of commonly substituted materials. The substitution of high-energy-intensive materials for low-energy-using wood materials would contribute substantially to an overall increase in carbon

We assess the roles of long-lived greenhouse gases and ozone depletion in driving meridional surface pressure gradients in the southern extratropics; these gradients are a defining feature of the Southern Annular Mode. Stratospheric ozone depletion is thought to have caused a strengthening of this mode during summer, with increasing long-lived greenhouse gases playing a secondary role. Using a ...

Previous studies have found that atmospheric brown clouds partially offset the warming effects of greenhouse gases. This finding suggests a tradeoff between the impacts of reducing emissions of aerosols and greenhouse gases. Results from a statistical model of historical rice harvests in India, coupled with regional climate scenarios from a parallel climate model, indicate that joint reductions...

til very recently, scientists still deliberated whether human activity was altering the global climate. Specifically, was the release of greenhouse gases, which trap heat radiating from the earth’s surface, to blame? With scientific evidence mounting in favor of the affirmative, the discussion is now turning to what steps society can take to protect our climate. One solution almost certainly wi...

Environmental controls of greenhouse gas release in a restoring peat bog in NW Germany S. Glatzel, I. Forbrich, C. Krüger, S. Lemke, and G. Gerold University of Rostock, Institute for the Management of Rural Areas, Landscape Ecology and Land Evaluation, Justus von Liebig Weg 6, 18059 Rostock, Germany Ernst Moritz Arndt University Greifswald, Institute for Botany and Landscape Ecology, Grimmer S...

Besides its great potential in controlling water pollution from different sources, waste water treatment system generates significant amount of greenhouse gases. Hence, reducing the emission of greenhouse gases from the wastewater treatment plants is the major concern. The correct understanding and estimation of the greenhouse gases emitted from different points of the plan is essential to tack...

As we saw last week, the worldwide scientific community has reached consensus that global warming is inevitable if humans continue to dump "greenhouse gases" into the atmosphere at anything like present rates. Greenhouse gases include carbon dioxide, methane, nitrous oxide, chlorofluorocarbons (CFCs) and a few others. These gases act like the glass covering a greenhouse, letting sunlight in but...

CONTINUED ON PAGE 5 California has drawn much international attention with its efforts to reduce greenhouse gases and encourage clean electricity production. In addition to pre-existing regulations that require expanded energy efficiency programs and increased purchases of renewable energy, last year California passed Assembly Bill 32 which calls for an overall reduction in greenhouse gases to ...