How CO2 Warms the Earth's Surface While Cooling the Stratosphere
openaccessgovernment.orgResearchers from Columbia University have identified the mathematical physics behind why carbon dioxide creates a dual effect on the atmosphere. While CO2 traps heat near the surface, it acts as a radiator in the upper atmosphere, shedding heat into space and cooling the stratosphere. This study identifies a specific range of infrared light that allows CO2 to function this way. Understanding this mechanism provides a quantitative explanation for a key fingerprint of climate change, showing how stratospheric cooling actually reinforces the greenhouse effect on the ground.
