TechnologyGlobal shipping needs to clean up its act now – here’s how to do itBertrand Piccard co-piloted the first round-the-world solar-powered flight. Now he’s aiming to green one of the world’s dirtiest, yet most crucial industriesComment
EnvironmentShould we eat local to cut food miles, or does it make no difference?Reducing food miles seems a sensible and straightforward way to cut carbon emissions. But digging into the science shows it's not that simple, says James WongComment