UPDATE 1-Activist Thunberg denounces "creative PR" in climate fight

Teenage climate activist Greta Thunberg accused political and business leaders of polishing their images rather than taking aggressive action in the fight against climate change at a United Nations summit on Wednesday.Politicians in Madrid are grappling with outstanding issues in the implementation of the 2015 Paris Agreement, which aims to avert catastrophic global warming, including the spiny issue of accounting for carbon emissions.Many countries and companies are relying on the idea of carbo