Several hundred Ann Arbor high school and university students walked out of class Friday to urge swifter action on climate change.
University of Michigan student Logan Vear is an organizer.
She points to a new report from the UN Intergovernmental Panel on Climate Change that warns that humans must completely eliminate their carbon dioxide emissions by 2050. That would give the world a fighting chance of limiting global warming.
But many companies - including Michigan's two largest utilities - only promise to reduce their CO2 emissions by 80% by then.
"And I think there are a lot of existing deadlines like that, not only in Michigan but across the nation, that obviously are not good enough," says Vear.