to capture carbon dioxide at scale at the source it's produced. in 2014, this was the first power station to use what's called carbon capture and storage. the flue gases are diverted to a purpose—built facility where the co2 is stripped away in a chemical process. it's then compressed and stored two miles underground. the system here stops around two—thirds of the co2 from reaching the atmosphere. last year, that was three quarters of a million tons. other projects are even more efficient. so couldn't we just ramp this up a notch or two and solve climate crisis for good? well, in theory, that would need tens of thousands more of these and today, we have fewer than 30 worldwide and sort of the same number again promised for the next 20 years. and it seems ccs, at least so far, is not a big winner.