Waking up to coffee
Opinion has long been divided over whether coffee is beneficial or harmful to health. Most recent research suggests the beverage is good for us – at least in moderation, as Maria Burke reports
Plumbing new depths
Commercial mining on the seafloor could start in July 2023, even if the international authority in charge fails to come up with a regulatory framework. But there are growing calls for a pause or moratorium, as Michael Gross reports
Greener fridges
Modern refrigerants rely on hydrofluorocarbons, potent greenhouse gases. New legislation means alternatives are urgently sought. So, could solid refrigerants be the answer? Jasmin Fox-Skelly reports
Plastic feast for bugs
Plastic waste generation has doubled over the past three decades, presenting huge environmental problems. But could plastic-eating organisms such as microbes and insect larvae hold the answer by converting our mountains of waste to useful biomass? Anthony King reports