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Every year during the austral summer, satellite imagery reveals a wide belt of unusually reflective seawater encircling Antarctica between about 38°S and 60°S. This bright, patchy halo, known as the Great Calcite Belt (GCB), covers 16% of the entire global ocean. New research by Balch et al. identifies key factors behind the formation of the GCB and explores its effects on carbon cycling.
Researchers have discovered that the ice-covered lakes in Antarctica's McMurdo Dry Valley uphold the thawed fragments of black carbon from ancient wildfires. The study was published in the American Geophysical Union journal Geophysical Research Letters, and was co-authored by Drs. Yan Ding and Rudolf Jaffe of the Southeast Environmental Research Center at Florida International University.
SERC researcher and FCE LTER Lead Principal Investigator Evelyn Gaiser is featured in the Miami Herald on Everglades research. For the last 16 years, nearly 80 scientists and their students from 29 organizations have embarked on one of the longest and largest studies ever conducted on South Florida’s coastal Everglades. They now fear the system may be at what lead investigator Evelyn Gaiser calls a “tipping point,” where change is happening faster than scientists expected.
The first few nights of February 2017 have been chilly by South Florida standards. This episode of WLRN's Topical Currents examines how these temperature dips affect South Florida plants and landscapes, featuring the Southeast Environmental Research Center's Dr. Jennifer Rehage. Listen to the full interview here.