TechnologyWaste paper turned into a super-spongy battery Treat paper in the right way and it can become a form of porous carbon capable of sucking up charge – making it the perfect battery for storing wind energy 51¶¯Âþ
EarthThis vast lake will die so millions can live better Kenya's Lake Turkana is vital for local wildlife and livelihoods, but Africa's tallest dam is going to choke it to provide much-needed power and water Features