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Monitoring Pollution

Road Transportation Is the Greatest Culprit in Global Warming


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 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.

via: Worldchanging


Heat-Resistant Algae Could Help Threatened Coral

Warmer ocean temperatures pose a serious threat to corals around the world.  Warmer waters typically kill the brown or green algae that a reef depends on for food, leading to bleaching and death of the reefs, but Penn State scientists have found some algae are not affected by rising temperatures, buying their coral partners some time.

Heat-resistant algae have been found in the Andaman Sea in the Indian Ocean as well as in spots in the Caribbean Sea and cheap cialis 50mg Pacific Ocean.  Scientists aren't sure if the buy cheap generic viagra resilient algae can save corals - the algae may not be able to be imported to coral reefs where it doesn't naturally occur and there are other things threatening coral, including rising ocean acidification, pollution and bottom-trawling fishing.  Considering all of that, the algae may be just a temporary life-preserver.

But some scientists think warmer waters may encourage the growth of these algae, benefitting the reefs they occupy over the long-term.  Continued research will be needed, but this discovery does offer a glimmer of hope for the world's coral.

via Dot Earth


Arctic Permafrost has Retreated 80 Miles in 50 Years

Scientists at Université Laval in Quebec have been tracking the movement of permafrost in the area and have found it's receding at an alarming rate.

Aerial photos of the James Bay region between the 51st and 53rd parallels taken in 1957 were compared to those taken in 2004 and 2005.  The photos showed the info cialis permafrost line (recognizable by distinct oval-shaped land elevations that form over permafrost) had retreated 80 miles and was deteriorating as far north as the 55th parallel.

The James Bay area makes up the southernmost part of Hudson Bay.  Warming temperatures -- a rise of cialis label as much as 3 to 4 degrees in recent decades -- is causing tundra disappearance in the area as well.

via Yale e360


Spying on the Environment, C.I.A. Style

Environment spy.  Now that sounds like an amazing job.  Spending your days examining images from spy satellites, holding clandestine meetings with scientists.  What's the Arctic up to now?  We're watching you, rainforests.

What I just described isn't an idea for a new "green" James Bond, it's actually happening.  C.I.A. spies and top environmental scientists are working together to online cialis prescriptions monitor climate change around the world using the agency's high-tech sensitive instruments (reconnaissance satellites and generic cialis cheap other classified sensors).

The partnership idea isn't new - it was shut down by the Bush administration years ago, but now it's come back to life.  The C.I.A. is making data gathered by their instruments available to scientists to examine the effects of climate change, like the movement of polar ice.  The classified images are collected during the course of regular intelligence gathering and then passed onto scientists who've received secret clearance.

The great thing about this program is that it's virtually free.  The C.I.A. already has the satellites and sensors out there regularly collecting images, so nothing new has to be done but to analyze what's there.  The spies and scientists involved hope to not only be able to figure out what effects have happened, but predict future environmental impact.

via NY Times


Map of Countries' Emissions, Pledges

The AP Climate Pool kept us well informed over the course of the COP15 negotiations.  Part of that great coverage is contained in this interactive map of the participating nations' current emissions and the viagra pfizer india reductions they've pledged to make. You can find plenty of articles analyzing what was accomplished (or not accomplished) over the last two weeks, but this map quickly lays out the current emissions trends around the world.

Some of the interesting things revealed by this map are the huge percentage increase in emissions by China (136.2 percent) - close to triple that of number two Turkey (58.8 percent) - and the nice size reduction in emissions by Russia since 1990 (23.8 percent).  The U.S. has actually seen a decline in emissions of 1.8 percent, but we're still the largest emitter per capita, so that's not saying much, which also makes our pledge of a 17 percent reduction less than adequate.

Image via AP


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