Posts Tagged ‘ global warming issue ’

Ozone Hole Affects Upper-Atmosphere Temperature and Circulation

ScienceDaily (Dec. 4, 2010) — Observations have shown differences in altitude and brightness between polar mesospheric clouds (clouds made of ice crystals in the upper mesosphere) in the Northern Hemisphere and those in the Southern Hemisphere.

Various mechanisms have been suggested to explain the differences; a new study shows that the ozone hole in the stratosphere above Antarctica could be playing a key role in the temperature and circulation patterns in the mesosphere (an atmospheric layer that begins 50 kilometers above Earth’s surface, just above the stratosphere), leading to differences in polar mesospheric clouds.

Using climate model simulations, Smith et al. show that the ozone hole causes a decrease in temperature in the lower stratosphere that persists into the summer. These temperature changes are accompanied by wind changes that modify the upward propagation of small-scale waves, which in turn alter the atmospheric circulation in the mesosphere in the Southern Hemisphere.

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Green Infrastructure, Earth Day and Global Awareness

Global warming

Global Warming

Spring 2010 is approaching and there’s a lot of buzz around topics like the economy, taxation, global poverty, restoration in Haiti/Chile, and lastly, green awareness. With spring, Earth Day also draws nearer (April 22nd); as individuals, we must remember and realize the importance of global warming and all of its implications. Subsequent topics discussed as of late include space travel/burning of fossil fuels, deforestation and green building. As nations like Haiti and Chile prepare for rebuilding and new construction, there are many things to consider when advancing. Moving towards cleaner, greener infrastructure is vital in ensuring a successful restoration campaign.

The U.S. Green Building Council is a 501(3)(c) non-profit community of leaders working to make green buildings available to everybody. It’s one of the many organizations playing its role in green progression. Heavy discussion lies on green topics, especially the more recent ones like space travel; others include deforestation, green crops, clothing, energy, and much more. It’s important that we as individuals/citizens stay up-to-date on important global topics like warming. As organizations like the CGI (Clinton Global Initiative), AFH (Architecture for Humanity), and the USGBC (U.S. Green Building Council) conducts sustainability campaigns and enforce strict green constraints, our world will continue to become a better, cleaner place. Machines behind the CGI, Doug Band and Former President Clinton have been pursuing an emission reduction plan in the San Francisco Bay area. Meanwhile, CEO of GEC (Globetrotters Engineering Corporation), Niranjan Shah, is underway with green building projects in Chicago, IL. Despite these few national examples, green infrastructure, particularly in places like Haiti, has become an integral part of restoration and construction.

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