New York Times: Some of the most imaginative solutions to the problem of global climate change involve planetary-scale geoengineering projects to reduce the sunlight reaching the Earth`s surface. But proposals like building a huge sunshade in space or seeding the atmosphere with sulfate particles would cost enormous sums and require a degree of international cooperation that is difficult to achieve. Andy Ridgwell and colleagues at the University of Bristol in England have another idea, one they call …