Tag: tropics

Expanding Tropics

The portion of the Earth covered by tropics has expanded since 1979 and will continue to expand as the world warms. From the BBC article— While geographers define “The Tropics” rigidly as the region between 23.5 degrees North and 23.5 degrees South, to atmospheric scientists it is a more variable zone marked by features such as the jet stream and the circulation known as Hadley cells. On these measures, the tropics have expanded since the era of reliable satellite observation began in 1979. “The edges of the tropical belt are the outer boundaries of the subtropical dry zones, and their poleward

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Errington C. Thompson, MD

Dr. Thompson is a surgeon, scholar, full-time sports fan and part-time political activist. He is active in a number of community projects and initiatives. Through medicine, he strives to improve the physical health of all he treats.


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