Within a decade, wind generators will be cheaper than fossil fuel power plants.

Unfortunately, we haven't got a decade to wait lackadaisically to cut down on fossil fuels. We must take strong measures by 2017.

Wind power would be cheaper already if fossil fuels were taxed to cover the cost that their emissions impose on society.

For gasoline, that is estimated at almost 4 dollars per gallon, more than the price of gasoline in the US.

I advocate taxing fossil fuels to cover these costs, mainly so as to use the market to move society away from them. As for politicians that say they will make gasoline cheaper, they are pandering to the foolish side of human nature.

US citizens: call on Congress to support several bills to reduce the influence of rich people's money on elections.

A campaign for the UK government to allow undercover thugs to tell the public what they did.

Egypt plans to build a new capital city in the desert. So far it is not clear where the energy and water will come from.

Iran's repression is getting worse , according to UN special rapporteur.