As climate changes the World Bank reports that 75% of India's urban populations, about 380 million people, work in jobs exposed to extreme heat, life threatening heat.This is the informal workforce that generates 50% of GDP, that works as street vendors, construction or factory workers, house help, auto rickshaw drivers, street cleaners, delivery people and guards. More people will be added- over 400 million by 2050 as India urbanizes further. The Guardian looks at the situation in Bengaluru that in year 2000 was still cool and leafy except for summer that was for for a few months March to May with temperatures peaking at 34 degrees centigrade. Now the summer heat happens earlier 34 degrees C. by February and 38 degrees C. by May. Then there is the heat island effect as the city built from asphalt cement and metal heats up during the day and heats the atmosphere at night.