Climate activist Greta Thunberg reacts as she walks with members of the media during the World Economic Forum in Davos (WEF) in Davos, Switzerland

Video. 'Very likely’: Greta treats mocking reporters to signature sarcasm

After a visit to the World Economic Forum in Davos, the 20 year old activist walked around the outskirts of the Swiss ski resort - and was goaded by journalists.