Project could power Rwanda for decades, while reducing risk of disaster for two million people living alongside 'exploding lake'
It's dusk on Lake Kivu and the fishermen sing while paddling out in their catamarans, three canoes secured together with long wooden poles. As the twin volcanoes on the far shore disappear into the darkness...
Supermarket plans to phase out own brand, single-use plastic packaging within five years, as rival Lidl announces ban on black plastic across fruit and veg range
Ministers meeting on climate change, oceans and clean energy kicks off with joint UK-Canada commitment to smart grids and energy storage
National Drought Action Group warns water supplies in north of England remain low after scant rainfall this summer proved 'tough on farmers'
BusinessGreen brings you this week's green economy headlines from around the world