If cement production were a country, it would be the world’s third largest greenhouse emitter in the world, behind China and the U.S., accounting for 8% of global greenhouse gas emissions. Cement is also one of the hardest sectors to decarbonize, partly because combusting fossil fuels is, so far, the only way to produce the extreme temperatures necessary in production. But new tech developments are providing hope for this “hard to abate” industry. “The key reason why we wanted to be at COP27 was to bring the message that there are technologies available to solve the problem in industries that…