Impacts www.npr.org Climate change means 'virtually no male turtles' born in a key nesting ground Like many reptiles, the sex of a turtle is determined by how warm the egg is as it's being incubated. And small temperature differences can cause dramatic changes in the male-to-female ratio.
Newsletter www.washingtonpost.com Climate change turns green sea turtle eggs female, NOAA scientists say For every young male turtle, there are more than 100 females.