China Is the Biggest Steel Producer—by a Long Shot

China is the world’s top source of steel, so much so that the World Steel Association’s monthly press releases show production in China versus the rest of the world. In September, the last month of available data, China produced 74 million tons of crude steel. That’s half of all production globally.
The industry is more loosely regulated there than in other countries and relies heavily on polluting processes. And that has huge implications for the climate.