Georgia Tech researchers are using cores like these taken from fossil coral to provide information about the strength of the El Nino Southern Oscillation (ENSO) during periods of time as long as 7,000 years ago. (Georgia Tech Photo: Gary Meek)
Georgia Tech researchers are using cores like these taken from fossil coral to provide information about the strength of the El Nino Southern Oscillation (ENSO) during periods of time as long as 7,000 years ago. (Georgia Tech Photo: Gary Meek)