New Lidar Reveals Seasonal Temperature Variations in a Mid-latitude Mesopause Region

It is now common knowledge that releases of trace gases from human activity may cause global climatic change. At the current rates of increase, the amount of tropospheric CO2 and CH4 are predicted to double within the next century, causing the temperature in the troposphere to be warmer and cooler in the stratosphere by a few degrees. Circulation model studies1 suggest that doubling of CO2 and CH4 may cool the upper mesosphere by 10-20 K and cool the thermosphere by as much as 50 K.

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