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Latest News on Global Warming

Rolling Stone Magazine, June 20, 2014

It is worth remembering this key fact about the supply of the basic "fuel": Enough raw energy reaches the Earth from the sun in one hour to equal all of the energy used by the entire world in a full year. Al Gore

Read more: http://www.rollingstone.com/politics/news/the-turning-point-new-hope-for-the-climate-20140618#ixzz351i2Yan9




BBC News, Matt McGrath, Thur Nov 14

The world's oceans are becoming acidic at an "unprecedented rate" and may be souring more rapidly than at any time in the past 300 million years.

In their strongest statement yet on this issue, scientists say acidification could increase by 170% by 2100.

They say that some 30% of ocean species are unlikely to survive in these conditions.

The researchers conclude that human emissions of CO2 are clearly to blame. Read more at: http://www.bbc.co.uk/news/science-environment-24904143

Alan Henry - PC Magazine Fri Sep 19

12 Year old boy invents more efficient Solar Panels

One significant problem with existing solar technology is that it's not terribly efficient at harvesting solar energy and turning it into electricity.

Solar technology is improving all the time, but one 12-year-old boy may have the key to making solar panels that can harness 500 times the light of a traditional solar cell. William Yuan is a seventh grader in Oregon whose project, titled "A Highly-Efficient 3-Dimensional Nanotube Solar Cell for Visible and UV Light," may change the energy industry and make solar energy far easier to harness and distribute.

At the heart of Yuan's project is a special solar cell that can harness both visible and ultraviolet light. Most solar cells in use today are either photovoltaic, meaning they harness only visible light, or thermal. While visible, infrared, and ultraviolet light are all heavily scattered or absorbed by the Earth's atmosphere, ultraviolet light comes in at shorter wavelengths and with higher energy than both visible and infrared light. Ultraviolet light can provide more energy to a collector than other, longer-wavelength members of the electromagnetic spectrum. Yuan's solar cells are not just innovative for their collection of UV light, but also because they're engineered to stand freely in three dimensions (which allows them to collect more light) and make use of carbon nanotubes, which allow the cell to distribute the energy it collects without dissipating as much as traditional cells do. Yuan is looking for a manufacturer to invest in building his new solar cell, and likely won't have a problem finding a partner. Yuan's solar cells have earned him a $25,000 scholarship to fund his education and research, a fellowship at the Davidson Institute for Talent Development, and a host of other awards in science and engineering. Yuan isn't the only young inventor making a difference, more and more young innovators are changing the face of clean technology.

Originally posted on GoodCleanTech.

FAQs: The Safety of Plastic Beverage BottlesTo help assure the safety of our food, the U.S. Food and Drug Administration carefully reviews food and beverage packaging materials, including plastics for beverage bottles, before allowing them on the market.Most convenience-size beverage bottles sold in the United States are made from polyethylene terephthalate (PET). PET has become the material of choice for bottled beverages because it is lightweight and shatter resistant, and PET has been extensively tested for safety. Bottles made with PET are widely used for everything from water and fruit juice to soft drinks and even beer.

1.When consumers choose to refill and reuse convenience-size plastic bottles, should they be concerned about potentially harmful bacteria?

2.What about the University of Calgary study?

3.How do I know that the plastic in my bottle is safe?

4.Will a plastic bottle leach harmful substances into water if I reuse it?

5.What about the student project that claimed to have found unhealthy compounds in water samples from reused bottles?

6.But I read that the student’s project found carcinogens?

7.Is it true that the U.S. Food and Drug Administration (FDA) only allows plastic beverage bottles, such as those made with polyethylene terephthalate (PET), for one-time use?

8.Can freezing a PET beverage bottle cause dioxins to leach into its contents?


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To answer these questions, read more at: http://www.plasticsinfo.org/s_plasticsinfo/sec_level2_faq.asp?CID=705&DID=2839#7


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