Dr steve smith again. atjust a smaller scale, some of them are more expensive, but what really need to do is support those in helping the cost down while we reduce emissions — so that in 20—30 years' time, hopefully when emissions are much lower and these removals can also be at scale, and we can get to net zero emissions and beyond. the use of technology —— the technology has some critics. bbc environment correspondent jonah fisher explains. they see it as a distraction from what everyone agrees is the big issue, which is we need to massively cut them amount of carbon dioxide we are p...