The Hill: President Obama on Wednesday called climate change the global threat of our time" in a speech in Berlin. Amid signs the White House is getting ready to unveil new executive-level steps to curb greenhouse gases, Obama linked fighting climate change to peace and justice while calling for bold action. Peace with justice means refusing to condemn our children to a harsher, less hospitable planet," he said in a speech at Berlin's Brandenburg Gate. "The effort to slow climate change requires bold action....