News tagged with green energy

Understanding photosynthesis: How plants use catalytic reactions to split oxygen from water

Splitting hydrogen and oxygen from water using conventional electrolysis techniques requires considerable amounts of electrical energy. But green plants produce oxygen from water efficiently using a catalytic ...

Chemistry / Materials Science

created Apr 02, 2012 | popularity 4.8 / 5 (11) | comments 8 | with audio podcast

Researchers find simple and cheap way to mass-produce graphene nanosheets

Mixing a little dry ice and a simple industrial process cheaply mass-produces high-quality graphene nanosheets, researchers in South Korea and Case Western Reserve University report.

Nanotechnology / Nanomaterials

created Mar 26, 2012 | popularity 5 / 5 (33) | comments 22 | with audio podcast

Lessons to be learned from nature in photosynthesis

Photosynthesis is one of nature's finest miracles. Through the photosynthetic process, green plants absorb sunlight in their leaves and convert the photonic energy into chemical energy that is stored as sugars ...

Chemistry / Materials Science

created Sep 23, 2011 | popularity 4.7 / 5 (10) | comments 0 | with audio podcast

Buzz builds around electric cars as Nissan plans debut

As the Gulf of Mexico disaster casts an ugly spotlight on the pitfalls of global oil dependency, Japan's auto giants are moving into high gear in a drive to mass-market electric cars.

Technology / Energy & Green Tech

created Jun 20, 2010 | popularity 4.4 / 5 (24) | comments 23

Deep Green underwater kite to generate electricity (w/ Video)

(PhysOrg.com) -- An underwater tidal turbine called an “underwater kite” has just secured finance from investors to ensure its 2011 tests can go ahead.

Technology / Energy & Green Tech

created May 11, 2010 | popularity 4.1 / 5 (25) | comments 10 | with audio podcast report

Hydrogen still in the eco-car race

(AP) -- Hydrogen, one of Earth's most abundant elements, once was seen as green energy's answer to the petroleum-driven car: easy to produce, available everywhere and nonpolluting when burned.

Technology / Energy & Green Tech

created Apr 18, 2010 | popularity 4.3 / 5 (22) | comments 9

Obama unveils historic power grid reform

President Barack Obama Tuesday announced the largest modernization of the US electricity grid in history, in a 3.4-billion-dollar bid to launch a new era of renewable energy consumption.

Technology / Energy & Green Tech

created Oct 27, 2009 | popularity 4 / 5 (16) | comments 1

Hydrogen-making algae's 'Achilles' heel' discovered

(PhysOrg.com) -- Scientists have discovered how oxygen stops green algae from producing hydrogen. The findings could help those working towards 'solar H2-farms' in which microorganisms produce hydrogen fuel ...

Chemistry / Biochemistry

created Sep 29, 2009 | popularity 4.5 / 5 (11) | comments 3

Diet may reduce risk of prostate cancer

A new review published in the Journal of Human Nutrition and Dietetics assessed whether certain modifications in diet have a beneficial effect on the prevention of prostate cancer. Results suggest that a diet low in fat an ...

Medicine & Health / Cancer

created Jun 03, 2009 | popularity 4.5 / 5 (4) | comments 2

Barack Obama Announces Another $1.2 billion for Energy R&D

(PhysOrg.com) -- One of the more interesting areas of technological development in the coming years is likely to be energy development -- specifically green energy development. With new advances in physics ...

Technology / Energy & Green Tech

created Mar 24, 2009 | popularity 4.8 / 5 (16) | comments 3 weblog

Zinc oxide gives green shine to new photoconductors

Photodetectors -- devices found in cell phones, digital cameras and other consumer gadgets that utilize photoconducting materials -- are a green technology in performance (converting light into electricity), but the manufacture ...

Nanotechnology / Nanomaterials

created Mar 18, 2009 | popularity 5 / 5 (5) | comments 0

Geothermal heating system draws on limitless fuel: sewage

Among the many renewable energy sources - wind, solar, hydroelectric, biofuels - there is one to which we all contribute that has not yet managed to attract the romantic advocates who have embraced other forms of green energy.

Technology / Energy & Green Tech

created Apr 19, 2012 | popularity 5 / 5 (5) | comments 1

US grabs lead over China in clean energy race

The United States has regained the lead in the clean energy race, investing $48 billion last year to surpass China, which held the world's top spending spot since 2009, said a study Wednesday.

Technology / Energy & Green Tech

created Apr 12, 2012 | popularity 3.4 / 5 (8) | comments 21

Scientists save energy by lubricating wood

(PhysOrg.com) -- A little bit of lubrication could make a big energy saving when manufacturing sustainable biofuels and bio-chemicals from timber, according to research published in the journal Green Chemistry this month. ...

Chemistry / Materials Science

created Mar 09, 2012 | popularity 3.7 / 5 (14) | comments 15 | with audio podcast

UT biosolar breakthrough promises cheap, easy green electricity

Barry D. Bruce, professor of biochemistry, cellular and molecular biology, at the University of Tennessee, Knoxville, is turning the term "power plant" on its head. The biochemist and a team of researchers have developed ...

Technology / Energy & Green Tech

created Feb 02, 2012 | popularity 4.9 / 5 (8) | comments 8 | with audio podcast

Green energy

Green energy is the term used to describe sources of energy that are considered to be environmentally friendly and non-polluting, such as geothermal, wind, solar, and hydro. Sometimes nuclear power is also considered a green energy source. Green energy sources are often considered "green" because they are perceived to lower carbon emissions and create less pollution.

Green energy is commonly thought of in the context of electricity, mechanical power, heating and cogeneration. Consumers, businesses, and organizations may purchase green energy in order to support further development, help reduce the environmental impacts of conventional electricity generation, and increase their nation’s energy independence. Renewable energy certificates (green certificates or green tags) have been one way for consumers and businesses to support green energy.

For more information about Green energy, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.