Fifty-six northern Michigan climate activists will hop on a bus this weekend for a whirlwind trip to New York City to take part in a historic climate change rally. The Sierra Club, national climate advocacy group 350.org, and several national environmental organizations are organizing this weekend’s march in New York City to coincide with United Nations summit on the climate crisis. UN Secretary­ General Ban Ki-moon is urging governments to support an ambitious global agreement to dramatically reduce global warming pollution.