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Cheap and inexhaustible electricity production remains one of the Holy Grails of the green movement, with solar running neck and neck with wind in its ability to inspire innovation. Here's an example: Conventional solar cells are made of silicon, a brittle substance that requires a solid backing. But recently, Xiaomei Jiang from the University of South Florida has announced the development of the tiniest solar cells ever produced -- cells made from an organic polymer that is able to be dissolved and painted onto any surface that is exposed to the sun.
HOUSTON – Continental Airlines on Wednesday became the first U.S. commercial carrier to conduct a demonstration flight powered in part by alternative fuels, though large-scale use of such fuel is forecast to be several years away. The Houston-based company, the nation’s fourth-largest airline, made the flight with a Boeing 737-800 that left from Bush Intercontinental Airport, its large hub. The flight took about 1 hour, 45 minutes and had no passengers.
New equipment for converting wood chips into pulp will reduce natural gas consumption at the Inland Empire Paper Co. by as much as 75 percent and carbon dioxide emissions by 33,000 tons annually, President Wayne Andresen said Monday. The $40 million investment will also allow the mill to slightly increase output, to about 570 tons per day, Andresen said.
Despite our best intentions to live by the mantra, "Take only photos, leave only footprints," our carbon footprint is not an easy one for the earth to erase. So, what is a carbon footprint exactly? It's the measure of human-produced greenhouse gases from activities such as driving a car or using electricity, and it's measured in units of carbon dioxide gas. The concern is that excess carbon dioxide will kick up the earth's temperature to a broil, and eventually it'll be too hot for humans -- and most other species -- to handle.
Cornelius Cronin bought a $900 Chevy S-10 pickup and spent several weeks removing things he didn't like -- mainly its dirty, gas-guzzling engine. He fitted an electric motor and batteries under the hood, and now purrs around Oldsmar, Fla. in a red truck that uses no gas and emits no air pollution.
This year, crews won't just be trimming the National Christmas Tree, they'll be trimming the nation's energy bill, too, with the most energy-efficient holiday display in our national history.