Greta Thunberg asks UK: 'I will not be silent while the world is on fire – will you?'
Greta Thunberg asks UK: 'I will not be silent while the world is on fire – will you?'

Greta Thunberg at a rally in Bristol, England asks the crowd: "I will not be silent while the world is on fire – will you?" on Friday (February 28).