Mumbai, Nov. 21 -- The city's slum settlements are five-six degrees warmer than their neighbouring housing societies, while 37% of Mumbai's households with metal roof structures are exposed to a risk of high rise in temperatures or heat risk post monsoon, a study by the geo-analytics team of environment group World Resource Institute (WRI) India across the city during October over the past three years has revealed. The study found the city has an alarming shortage of green cover....