The 16-year-old activist behind the fast-growing School Strikes 4 Climate Action has taken her campaign to the streets of Davos, to confront world leaders and business chiefs about the global emissions crisis.
Sir David Attenborough has warned that humankind has the power to exterminate whole ecosystems "without even noticing", and urged world leaders to treat the natural world with respect, during an interview with Prince William in Davos.
Brazil's new rightwing president Jair Bolsonaro has prompted fresh alarm among environmentalists after stressing that protecting his country's unique ecosystem has to be consistent with growing the economy.
