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Industrialised nations are responsible for the bulk of greenhouse gas emissions - both today and historically. In the past, economic progress was linked directly to carbon dioxide emissions (via the burning of oil, coal and gas to generate energy). Renewable energy sources change this, but only a small number of nations have begun to implement them in earnest.

Two billion people – one third of the world's population – have no access to electricity for basic needs such as lighting or cooking. Getting people the clean and reliable energy necessary for essential needs such as clean water, health care facilities, heating and lighting is one of the most pressing problems facing humanity today.

Industrialised nations have the capital, resources and expertise to jump-start their renewable energy industries. Obviously, countries with advanced space programs, established higher educational systems and abundant cash for investment are better positioned to implement these new energy technologies then countries still struggling with basic energy needs.

"It will change . . . the way children everywhere think about themselves in relation to the world,"

The hope is to solve these problems and begin production of the laptops by late 2006.

This has made them attractive to film companies because even a limited theatrical release can be highly profitable.

Compared to dramatic narrative films, documentaries typically have far lower budgets.

revolutionize how we educate the world's children

deals with the failings of the U.S. health care system, both real and perceived. But this time around, the controversial documentarian seems to be letting the subject matter do the talking