Around two dozen climate activists in Berlin temporarily blocked two roads in the south and north of the German capital on Monday. According to the organizers, the slip road to a motorway in the southern Steglitz district and another road in the northern Pankow district were affected. Police said they attended both locations and had taken away activists who were standing or sitting on the roads. A police spokesman said 13 participants were temporarily taken into custody. Photographs on Twitter showed a small group of people in high-visibility vests sitting on the tarmac. Behind them are some o…