OPINION: Indian Prime Minister Narendra Modi’s surprise pledge to reach net zero emissions for the country by 2070 comes as a positive surprise for many but, even allowing for its tardy target, lacks substance and a roadmap.

More than 70% of India’s electricity comes from coal-fired power plants and consumption of this highly polluting fuel has been on a steady rise.

India recently faced a major power crunch as coal shortages across the country led to power supply curbs.