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CHICAGO SEWAGE SYSTEM
In 1892, engineers began the Chicago Canal to divert sewage using 42 million cubic yards of earth; more than a century later, it may help Asian carp reach the Great Lakes- In 1972, Chicago began digging 110 miles of sewer tunnel up to 300 feet down; 50 years on, the Deep Tunnel has captured more than a trillion gallons of combined sewage
- Researchers replaced a bare roof with plants; green roof surfaces stayed 30 to 40°F cooler in summer
- In the 1970s, the US introduced four carp species to control weeds; decades later, these carp spread as far as Minnesota, threatening native fishFour Chinese carp species were imported to southern fish farms in the 1970s. These fish escaped into the Mississippi River system after flo...31 Jul, 2026, 04.40 PM IST
- In 1900, Chicago made its river flow backward to keep sewage out of Lake Michigan, redirecting the water toward the Mississippi Basin insteadChicago reversed its river flow in the late 1800s to protect its drinking water. This engineering feat sent waste away from Lake Michigan a...24 Jul, 2026, 05.51 PM IST
- These mid-cap stocks with ‘Strong Buy’ & ‘Buy’ recos can rally over 25%, according to analystsThe street is witnessing an element of profit-booking. Not surprising, as we have seen an uptrend both in the broader market and in the Nif...02 Jul, 2025, 11.37 PM IST
- What's gone horribly wrong with the US college admission systemApplicants have more anxiety than ever. Elite schools have more power than ever. Something had to give.10 May, 2024, 11.49 AM IST
- Will future megacities be a marvel or a mess? Look at DelhiIndia’s capital chronicles the extremes of a story that is playing out around the world03 Nov, 2018, 02.28 PM IST
- How these companies are using tech to solve Bengaluru’s deep water crisisThen came a recent report by the Centre for Science and Environment that the city was facing the same grim prospects as Cape Town in South ...08 Apr, 2018, 01.47 AM IST
- The case for and against public toiletsPublic urination is, of course, still common in India, but it is being constrained by initiatives like Swach Bharat – yet without easy prov...27 May, 2017, 12.20 AM IST
- Surat partners with Microsoft to become a Smart CitySMC has been one of the early technology and e-Governance adopters and the city has selected Microsoft as its partner of choice for process...22 Dec, 2014, 04.39 PM IST
- The Indian dream is born in cities: Edward GlaeserCities are not infallible. They rise; they decline. But they rise and decline on account of the people who constitute them.15 Mar, 2011, 07.56 AM IST
- Globalisation and the urban spaceThough globalisation has influenced urban space formation in India, shaping of spatial structures of Indian cities by global forces has bee...16 Mar, 2009, 01.13 AM IST
- You still may get stuckMajor roads and low-lying areas in the island city are likely to continue to be flooded if it pours more than 50 mm in an hour.25 Sep, 2006, 02.52 AM IST
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