HINDUSTAN TIMES VIA GETTY IMAGES
Concrete mixing machines line up at the construction site for high-rise buildings on April 10 in Kolkata, India.
The construction industry — from the mining and smelting of raw materials to dealing with the waste from demolished structures — has a huge environmental footprint that is often overlooked. It produces 11% of global greenhouse gas emissions. That’s a staggeringly high number, four times the emissions of the whole aviation sector.