EnvironmentIs it time to try geoengineering to solve the climate crisis? The US National Academy of Sciences says we need a research programme testing out controversial geoengineering techniques that aim to cool Earth by injecting particles into the air or thinning clouds Analysis
EnvironmentCarbon-negative crops may mean water shortages for 4.5 billion people Harvesting energy crops and capturing the carbon released when they are burned is seen as central to fighting climate change – but could leave 4.5 billion people facing water shortages News