Here\u2019s another reason we all need to work on curbing climate change: an article in Smithsonian magazine details the pitfalls of rising CO2 levels in the workplace, not least of which is compromised productivity. With what is called \u201csick building syndrome\u201d, doctors identified a set of symptoms set off by conditions within the walls of office buildings, which include headaches and dry eyes, among others. Climate change will likely make the problem worse and decrease productivity to boot. Increasing levels of carbon dioxide is a significant problem inside buildings, says John Spengler, the Akira Yamaguchi Professor of Environmental Health and Human Habitation at the Harvard School of Public Health. Spengler estimates that CO2 levels in office buildings can be twice as high due to the breaths people take inside the building.