When you think about net zero, what comes to mind? Sunlight reflecting off solar panels? Turbines spinning in strong coastal winds? We’re used to looking up and out to imagine a low-carbon future. But one of the most powerful tools for reaching net zero isn’t in the sky or the sea – it’s beneath our feet. The subsurface is vast, secure, and uniquely suited to underpin the technologies that will define a low-carbon economy. Deep underground reservoirs can permanently store carbon captured from...