Environment A selection of stories I have written for CNN about sustainability, climate change and potential solutions to the problems our planet is facing. ‘Polar Pod’ vessel will brave terrifying waves and winds orbiting Antarctica At this grocery store the only currency is your climate footprint Treasured UNESCO sites at risk from climate change Is Laos facing a dam disaster? How tiny Bhutan has no carbon footprint Solving Everest’s mounting poop problem Fishing for plastic from a floating bicycle Why these kids are suing their governments Can the Middle East solve its water problem? Creating bubbles of clean air in London Can plastic roads solve two world problems? Are treehouses really sustainable? The 280 million-year-old forest in the South Pole The tiny Welsh car that runs on hydrogen and emits only water These ocean drones are trawling for climate data Six solar-powered airports take off in South Africa