ClimateBiz: Waste-heat recovery attracts less attention than other types of clean energy but a Chinese company is proving the technology can slash emissions at some of the world’s largest corporations, and in some cases, generate a carbon credit revenue stream at the same time. China Energy Recovery (CER) has made several announcements in recent months touting projects with energy-intensive companies linked to the global supply chain. Last month, I caught up with Roger Ballentine, a CER board …