 Climate activists blocked traffic near Leicester Square on Monday. They chained themselves to a car and a giant pink table erected in the middle of the street. Police officers from London's Metropolitan Police caught the activists' chains and made a rest. The activists from the Extinction Rebellion Group want an emergency response from governments and a mass move away from polluting industries. This is to avert the worst scenarios of devastation outlined by scientists. The group, which had earlier rallied at London's Trafalgar Square, targeted the Medivio Guild Hall over the weekend. And that's the home of the City of London's Corporation, which governs the city's historic financial centre. London's police warned on Friday that protests by environmental activists planned for the next two weeks would cause disruption across the capital and distract officers from dealing with crime.