The COP27 climate conference in Egypt has seen John Kerry, the US president’s climate envoy, trumpet the expansion of the First Movers Coalition.

The public-private partnership aimed at teeing up demand for clean technology through advance purchase commitments.

With 65 new members, the coalition now has $12bn in corporate pledges that the US State Department trumpeted as the “world’s strongest demand signal” for the likes of clean steal, zero carbon fuels and CO2 removal.