> "for CO2 to be captured, you need some equivalent of the energy from sunlight in photosynthesis." There's approximately three trillion trees on the planet, p

> "for CO2 to be captured, you need some equivalent of the energy from sunlight in photosynthesis." There's approximately three trillion trees on the planet, plus as many more shrubs, bushes blades of grass. The amount of surface area of all their leaves combined is not capturing enough CO2 to help. So to solve carbon capture we would need machines which touch more air than all the leaves on Earth, pumping through a nontrivial amount of the planet's atmosphere, and finding the dispersed 400 CO2 needles in every million haystack molecules of atmosphere. On the other hand the UK (which raises sheep) imports lamb from New Zealand some 11,000 miles away, by boat or plane. It's unthinkable that we can solve carbon capture at all, but compared to the ease of stoping the emissions of those flights/ships is fantasy.