Bomb the Arctic, dam the Mediterranean and build a second moon: five outlandish plans to remodel our climate

Humans have long sought to geoengineer the Earth’s environment. Tim Flannery outlines a few of the wildest ideas from the 20th century An increasing number of scientists think we have let the climate crisis fester for so long that our only hope to stave off ever-intensifying catastrophes is to use technological interventions. Cloud brightening, injecting sulphur into the atmosphere and the use of tiny mirrors in space – all of which might reduce the amount of sunlight reaching Earth’s surface...

By Tim Flannery