South Korea has cut household food waste going to landfill from 97% to almost nothing. New York City has started sending its scraps the same way.
Energy grids, data networks, stock markets: how easy is it to shut down our modern world by attacking the systems that synchronise time and space? Meet the jammers finding out.
Advocates say data centres will bring jobs but others worry they will suck up resources while providing little advantage.
Start-ups are taking fresh approaches to geothermal energy, but will the economics work?
Molecules that can capture heat could be a useful technology to decarbonise heating.
The rise in energy prices has hit Asia particularly hard as many nations are heavily reliant on Gulf oil.
BBC Security Brief's Mikey Kay breaks down why Kharg Island is so strategically important for Tehran.
The treasures beneath Greenland's icy terrain have been coveted for more than a century. But as Donald Trump becomes the latest to eye this wealth, accessing them remains a challenge.
In 2005, China only had two EV battery manufacturers. Twenty years later, it produces more than three-quarters of the world's lithium-ion cells. How did it happen?
