Worldwide 32-50 billion t of aggregate (sand/gravel) are extracted pa. In 2012 enough concrete was poured to build… https://t.co/k6Hbpw8ag8
RT @LionHirth: 👇 "Not the top killer" is somewhat of an understatement. https://t.co/dW5CiWHceN
RT @LionHirth: 👇 "Not the top killer" is somewhat of an understatement. https://t.co/dW5CiWHceN