Teen climate activist Greta Thunberg speaks at four school strikes in a week

Sixteen-year-old climate activist Greta Thunberg has criss-crossed the continent speaking at rallies in four countries in just eight days in a bid to spur politicians into action. She also made a brief stop at the European parliament in Brussels to address EU leaders. The Swede has become a social media sensation this year with her campaign of school strikes sweeping across dozens of countries and tens of thousands of teenagers participating Subscribe to Guardian News on YouTube ►