The falling price of renewable electricity and batteries may enable India to provide electricity to everyone using renewable energy instead of coal.

India should decide now to reject coal. It will do little good for millions of poor Indians if they get electricity in the next 20 years, only to die from global heating effects in another 20 years.

In the long term, for India to reduce the number of poor people it must stop making more of them by means of birth control. Without that, it's a Red Queen's race.