如何让世界免受厄尔尼诺之害

Ambitious ideas to shield us from the worst impacts of El Niño are being worked on, but how feasible are they, asks Madeleine Cuff AS COUNTRIES around the world brace for a torrid few months as El Niño hits, what if we could take the sting out of its tail – or even stop it from happening altogether? That’s the hope of physicists, chemists and engineers working on ideas ranging from the outrageously radical to the just-might-work. One of the most ambitious ideas for halting El Niño is to repurpose a technique called artificial upwelling, which was initially conceived to boost the uptake of carbon by the oceans. …