Climate activists from Extinction Rebellion have begun two weeks of blockades and acts of civil disobedience by occupying two main traffic intersections in Berlin, demanding that Germany's government "tells the truth" about the threat posed by climate change. Berlin authorities have said they will tolerate protests as long these stay peaceful while a federal government representative said "dangerous" interventions in traffic are not acceptable. [Update adds developments on 8 October, quotes by activist Judith Gröpper]