Greta Thunberg leads Fridays for Future protest at U.N. climate summit

The day offered a strong actuality test: Children, representing the longer term, have been on the march, whereas the previous guard — together with former vice chairman Al Gore, 73, and U.S. local weather envoy John F. Kerry, 77 — have been contained in the corridor with negotiators, expressing guarded optimism that extra progress was being made than thought doable just some weeks in the past.