A transparent thin film barrier used to protect flat panel TVs from moisture could become the basis for flexible solar panels that would be installed on roofs like shingles.

The flexible rooftop solar panels - called building-integrated photovoltaics, or BIPVs - could replace today's boxy solar panels that are made with rigid glass or silicon and mounted on thick metal frames. The flexible solar shingles would be less expensive to install than current panels and made to last 25 years.

"There's a lot of wasted space on rooftops that could actually be used to generate power," said Mark Gross, a senior scientist at the Department of Energy's Pacific Northwest National Laboratory. "Flexible solar panels could easily become integrated into the architecture of commercial buildings and homes. Solar panels have had limited success because they've been difficult and expensive to install."

Via: http://www.pnl.gov

Tags: Solar Power, Roof, shingles solar panel

They look more like the brightly lit shelves of a chemists shop than the rows of a vegetable garden.

But according to their creators, these perfect looking vegetables could be the future of food.

In a perfectly controlled and totally sterile environment - uncontaminated by dirt, insects or fresh air - Japanese scientists are developing a new way of growing vegetables.

Called plant factories, these anonymous looking warehouses have sprung up across the country and can churn out immaculate looking lettuces and green leaves 24 hours a day, seven days a week.

Every part of the plant's environment is controlled - from the lighting and temperature, to the humidity and water. Even the levels of carbon dioxide can be minutely altered.

Rather than the conventional scruffy clothes and dirty fingernails of vegetable growers, the producers wear gloves, surgical masks and sort of dust proof protective suits normally seen in chemical plants.


Via
http://www.dailymail.co.uk/sciencetech

Tags: plant factories

The wasteful practice of finning — slicing off a shark's valuable fins for soup and tossing the body back to sea — must be stopped.

Please send the message below to your senators urging them to vote "YES" on The Shark Conservation Act of 2009 that will close current loopholes to stop the practice while revitalizing shark conservation efforts on a global scale.

Tags: finning, Sharks

Did you know that Americans could save more than 400,000 trees if each family replaced just one roll of virgin toilet paper in their home with a roll of recycled toilet paper?

Recycled tissue products help protect ancient forests, clean water, and wildlife habitat. Simply put, it’s easier on the Earth to make tissues from paper instead of trees. And now you can find tissues and other paper products that are gentle on the Earth with the Greenpeace Recycled Tissue and Toilet Paper Guide iPhone app!

There are lots of brands of paper products to choose from. The Greenpeace Recycled Tissue and Toilet Paper Guide makes it quick and easy to find out which brands of facial tissues, toilet paper, paper towels, and napkins are truly green and which should be avoided. Greenpeace’s experts have carefully evaluated over 100 brands and recommended those that: contain 100% overall recycled content; contain at least 50% post-consumer recycled content; and are bleached without toxic chlorine compounds.

When you’re doing your grocery shopping or just stopping by the corner store to grab a roll of toilet paper, this app can help you make an informed decision as both a consumer and someone concerned about the world’s ancient forests.


** Don’t flush forests! Buy recycled! **

GREENPEACE

Tags: Greenpeace