The Guardian

The United Kingdom has made a commitment to have all new homes be zero-carbon buildings by 2016.  A debate, however, has sparked up over whether or not the government will really design a program that will develop zero-carbon housing.

The UK government's latest plans to promote and eventually replace short-haul flights with high-speed rail travel have been met with considerable derision by the aviation industry.

However, transport secretary Lord Adonis defends the plans as the only logical solution to reducing carbon emissions.

Biofuels generated from grain or oil crops may not be an environmental upgrade over petroleum.

This argument has been voicing itself louder and louder lately.  According to George Monbiot of The Guardian Newspaper, biofuels generated from oil crops and grains, such as corn, create more greenhouse gases than petroleum. 

Algae absorbs carbon a lot more quickly than trees.

So the slimy green stuff has long been a top candidate for bio-based systems to trap and store CO2, the most abundant greenhouse gas, that is created by, among other things, burning coal -- which supplies close to a third of the world's energy consumption.

One of the biggest complaints critics have about solar power is that it is expensive, even compared to other renewable sources such as wind and geothermal power.