Politics Donald Trump slammed for trolling Greta Thunberg climate speech Updated : September 24, 2019 11:11 PM IST Trump stirred up fresh outrage on social media late Monday with a tweet that sneered at an impassioned speech made by the 16-year-old at the UN climate summit in New York. 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.