A major milestone on the road to ridding Africa of polluting and dangerous kerosene lamps has been passed with the sale of solar lights reaching 1.5 million. Many of the 600 million people who are sti...

China has now overtaken the European Union as the largest new market for solar power as the industry becomes one of the fastest growing in the world.

Worldwide field trials show that just one degree of warming could slash wheat yields by 42 million tonnes and cause devastating shortages of this vital staple food.

The European Union, nervous about Russia cutting off gas supplies and keen to cut emissions by developing renewable energy sources, aims to link all its 28 member states to one electricity grid.

A report published ahead of the 2014 UN Climate Summit illustrates that poor and prosperous nations, tiny islands and great cities, can achieve all their energy needs from renewables.

Consumers worldwide increasingly want renewable energy sources to provide their electricity, yet many governments are ignoring them by continuing to exploit fossil fuels.

With the help of some clever engineering, the power of the Sun can now keep electricity turbines running however cloudy it may be, both night and day.

It is not just the extreme cold that birds have had to cope with in recent British winters, scientists have found, but the unpredictability with which the weather often now changes.