Billions are pouring into the enterprise of decarbonisation

“NERDS WILL invent the future,” declared Vinod Khosla in 2010. The venture capitalist was not talking about the sort of nerds responsible for e-commerce sites, marketplace apps or social-media platforms. Rather, his speech, delivered at the California Institute of Technology (Caltech), was intended to inspire brilliant engineers and scientists to pursue climate-related innovation. The “clean