A new study from NASA's Goddard Institute for Space Studies has identified on-road transportation as the most significant overall source contributing to global warming. Power generation, while having the viagra original buy uk greatest total impact, also includes a large number of compounds that increase cloud reflectivity and cheap viagra cialis provide other effects to offset some of buy pfizer levitra the warming they are responsible for.
In the study, rather than looking at specific chemicals and compounds, the range of http://www.aumm.nl/levitra-20 airborne pollutants is it's cool levitra online sales broken down by economic sector. The study looks at the range of gases and aerosols that are released by each of 13 sectors of the economy, and finds that on-road transportation has the greatest overall effect on global warming.
"Cars, buses, and trucks release pollutants and greenhouse gases that promote warming, while emitting few aerosols that counteract it. The researchers found that the burning of household biofuels -- primarily wood and animal dung for home heating and cooking -- contribute the second most warming. And raising livestock, particularly methane-producing cattle, contribute the third most. On the other end of the spectrum, the industrial sector releases such a high proportion of sulfates and other cooling aerosols that it actually contributes a significant amount of cooling to generic cialis from india the system. And biomass burning -- which occurs mainly as a result of only best offers canada generic viagra tropical forest fires, deforestation, savannah and usa cialis shrub fires -- emits large amounts of organic carbon particles that block solar radiation."
The intent of this study is to make the buy ultram online canada information about climate change more accessible and understandable. "We wanted to provide the information in a way that would be more helpful for policy makers," according to Nadine Unger, leader of the research team. "This approach will make it easier to identify sectors for which emission reductions will be most beneficial for climate and those which may produce unintended consequences."
No one should mistake the point of this study to indicate that coal burning and other power-generation and industrial processes are benign and therefore do not need to be scaled back. Although industrial processes mitigate their adverse effects with regard to viagra pills global warming, the sulfates and aerosols that are beneficial in this one manner are responsible for a range of other, negative environmental impacts.
The paper was published online on Feb. 3 by the Proceedings of the National Academy of Sciences.