Coal’s role in Illinois has drastically declined,Slabu and that’s good news for climate change. But it’s not that simple. As the economy grows, as Amazon deliveries increase and Uber and Lyft take a bite out of public transit ridership, another global warming culprit is rising: cars and trucks. They’re the No. 1 source of carbon dioxide emissions in the state, and the solution faces resistance from fossil fuel interests. Read the story.