Newsweek: On November 29, over 1 million people in 175 nations took to the streets, in the largest protest demanding immediate action on climate change in history. Among them were 10,000 people in Paris forming a mass human chain, despite a ban on protests enforced by police with batons, tear gas and concussion grenades, and who would go on to make arrests. The next day, 150 heads of statethe largest such gathering evercame together in Paris to work towards a legally binding global accord on climate change....