In just one year, Kochi's water metro carried 2 million people, runs mostly on solar power, cuts 22,800 tonnes of CO2 yearly — and 18 Indian cities are now planning similar floating metros.
Arjun Santhosh is a 14-year-old resident of Perumbalam, an island in the Vembanad lake of Kerala, swam three kilometres to his school for 10 days to protest and demand the construction of a bridge connecting his island to the mainland.
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