NEW HAVEN, Conn., April 21 (UPI) -- When most people think of Antarctica, they likely picture penguins, fur seals, lots of ice and dangerously low temperatures. But a new report by climatologists at Yale University details how parts of the South Pole once resembled the warm climates of coastal California and Florida.
Scientists measured the concentrations rare isotopes found in ancient Antarctic fossil shells to more accurately estimate the polar region's previous climactic conditions.