The Sunday Times’ tech correspondent Danny Fortson brings on Steve Oldham of Captura, to talk about why sucking CO2 out of the air is not a bad idea (6:30), using the ocean (10:00), their contraption (11:15), whether it can be done at scale (16:45), the maths of climate solutions (19:00), paying for it (21:00), the evolution of carbon removal tech (26:00), moving to Canada from England (30:00), how the space industry is like climate (31:45), the role of regulation (34:15), raising $60m (37:45), and politics (41:30).

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