Greta Thunberg, the 16-year-old Swedish environmental activist, has given her support for a general strike for the climate, saying the student movement she inspired needs more support from older generations to ensure politicians keep their promises under the Paris agreement.
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Her arrival on Sunday coincides with a surge of concern about the climate. On Thursday the BBC screened a documentary about the crisis, narrated by David Attenborough. In recent days, the governor of the Bank of England, groups of scientists and members of the clergy have added their voices to the call for more ambitious cuts to emissions.