Cheaper oil could damage renewable energies, says Richard Branson

Entrepreneur claims Saudi Arabia is encouraging collapse in oil price in bid to undermine fracking and clean energy

Europe and the ‘why me?’ approach to decarbonisation

A slowdown in the EU’s pace of climate action may inspire unintended reciprocal measures in the runup to the 2015 global climate summit in Paris

The climate debate must include nuclear

Letters: Hinkley Point C, when built, will produce more carbon-free electricity than all wind farms currently operational in the UK

Fashion meets renewable energy – clothes that charge your smartphone

From fibres that convert sunlight into electrical energy, to uploading your kinetic energy to a green energy bank, the worlds of fashion and technology are merging

• How can technology advance sustainability in fashion? – live online chat on Tuesday 5 August, 1pm BST

Biogas: can a green energy source be environmentally damaging?

Government efforts to protect sustainable agriculture may also cut off growth of the burgeoning British biogas industry

Green apps and gadgets: Conscious Me

It’s a growing interactive website on every subject you can think of, but how eco-conscious and useful has it become so far?