The discovery of a way to make hydrogen quickly and easily holds out hope that the process may eventually be scaled up to produce commercial quantities.
Energy from surplus wind power can be used to pump water uphill and will provide “battery” power to even out energy supply and demand, researchers say.
Renewable energy sounds like the obvious solution for a power-hungry planet. It would mean fewer greenhouse gases, certainly – but also a vastly bigger appetite for many minerals.
A new funding idea for developing countries could provide the renewable electricity output equivalent of 100 new coal plants by 2020.
Possible plans by a new government in Norway to make huge financial investment in global renewable energy projects are being heralded as a potentially world-changing initiative.
Heavyweights of world finance have fired warning shots at the fossil fuel industry by calling for cutbacks in its subsidies.
A new study suggests that economic growth and carbon cuts may not be mutually exclusive, offering a chance to keep energy supplies flowing without adding to global warming.