Joydeep Gupta, director for South Asia at North Pole, environmental news site, says 2050 is important but even more important is what India does now. This is why what Modi promised at COP26 Glasgow for 2030 matters- achieving 500 gigawatts of renewable energy capacity, improvements of 45% in reducing carbon intensity, and cutting carbon emissions by 1 billion tons. Here Gupta looks at what India will be doing, the obstacles and ways of achieving these goals.