'Biggest compliment yet': Greta Thunberg welcomes oil chief's 'greatest threat' label

Activists say comments by Opec head prove world opinion is turning against fossil fuels

Greta Thunberg and other climate activists have said it is a badge of honour that the head of the world's most powerful oil cartel believes their campaign may be the "greatest threat" to the fossil fuel industry.

The criticism of striking students by the trillion-dollar Organization of the Petroleum Exporting Countries (Opec) highlights the growing reputational concerns of oil companies as public protests intensify along with extreme weather.