150 years later the population is now closer to 10 million. This is what’s happening… Forward Thinking BC. To get a handle on how advanced the thinking was on ‘waste management’ thousands of years ago, the Mesopotamians had already figured clay sewer pipes around c.4000 BC. Utilised to remove wastewater, and capture rainwater in wells. But, … Continue reading London, as so many cities have done for millennia, uses its river for waste. In 1858 disease and ‘The Great Stink’ led to Sir Joseph Bazalgette’s super-sewer for 4 million people.