PM Modi’s surprise announcement at the COP26 on Monday, committing India to a net-zero economy by 2070 and 50% renewables in the energy mix by 2030, was generally hailed by international experts as one of the key breakthroughs of the Glasgow conference although some expressed disappointment over the 50-year promise.PM Modi’s surprise announcement at the COP26 on Monday, committing India to a net-zero economy by 2070 and 50% renewables in the energy mix by 2030, was generally hailed by international experts as one of the key breakthroughs of the Glasgow conference although some expressed disappointment over the 50-year promise.