As the leaves turn gold in southwest Wisconsin each fall, climate scientists from around the world gather there to share their latest findings on the causes and impacts of abrupt climate change.
That may look like a solar panel on the rooftop near Tucson, Arizona. But think again. It a carbon dioxide collector and we may be seeing a lot more just like it in the future.
A prototype collector invented by Klaus Lackner, director of the Center for Negative Carbon Emissions at Arizona State University, is perched on the roof of the center our ability to sponge CO2 out of the air.