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As the cost of fuel soars and the pressure mounts to reduce carbon dioxide emissions, several schemes for a new generation of airship are being considered by governments and private companies. “It’s a romantic project,” said Mr. Massaud, 45, sitting amid furniture designs in his Paris studio, “but then look at Jules Verne.”

Unsettlingly, usually, these discussions involve more strong opinions than data. Some people believe that one of these alternative (they are not all sustainable) energy options is the silver bullet that will solve both the climate and the energy crisis. Other argue that there is no silver bullet and that what is required are a variety of silver BB’s: a mixture of technologies, along with greater energy efficiency and preservation of habitat (forests). Do we really just need to build huge number of nuclear plants or wind farms to solve the problem? If, instead, we are going to use a mix of alternative energy sources, which ones should we use and in what quantities?

MADRID (Reuters) - Spain plans to give people grants to make their homes more environmentally-friendly, the prime minister said on Monday, a sign the government wants to push the green issue ahead of March's general election.

Although they may have been a far cry from the green eco-warriors of today, perhaps we should look to previous generations for inspiration as to how to care for our planet. That's the focus of a recent Adbuster's article, Our Grandparents: The Real Environmentalists?

With input from people around the world -- much of it on this website -- an international group of leading technological thinkers were asked to identify the Grand Challenges for Engineering in the 21st Century.  Now their conclusions are revealed on this website.

Elizabeth developed the POWERleap as her senior thesis project at the University of Michigan's School of Art and Design. She wanted to design a project that would educate people about their relationship and dependence on energy. Human bodies generate electricity, about 100 watts at rest, which (according to www.elizabethredmond.net) is enough to power the computer I am writing on.