Not so long ago, renewable energy pioneer Dale Vince (who we interviewed here) challenged Gordon Brown, the UK’s new prime minister, to adopt a target of zero carbon emissions by 2050.

Few companies have managed to make the business of green work for them quite as successfully as Babcock & Brown Wind Partners, a publicly listed investment fund based in Australia. After four years in business, the fund is now the world's fourth-largest owner of wind farms and plans to triple its size again in the next three years.

Australian professor lists the solutions he believes will emerge in reaction to climate change.

Spain, one of the world's leaders in wind energy, during a recent storm had wind as its number one energy producer over nuclear and coal. On an annual average, wind is Spain's third highest source of energy.

Economies of scale may apply to alternative energy sources, making them cheaper and more effective in the future.