Climate activist Greta Thunberg joins London protests after more than 1,000 arrested

Protestors took over the main hall of London’s Natural History Museum today, demanding action on climate change. After a week of demonstrations, police say they’ve arrested more than 1000 people – while roadblocks at some of the capital’s busiest streets have been cleared away.

The teenage climate activist Greta Thunburg told a rally in central London they were making a difference