Economy Why Greta Thunberg matters: Teen eco-warrior’s wake-up call spurs climate change dialogue Updated : September 26, 2019 06:25 AM IST In a voice quivering with rage, Thunberg called for a radical decrease in the use of fossil fuels. The 16-year-old has managed to do what most scientists and policymakers have been unable to do. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.