teenage mutant female ninja turtles?

Led by Mariana Fuentes, a James Cook University team working up in the northern end of the Great Barrier Reef has been evaluating the various climatic threats facing the green turtles..

Under the worst-case scenarios for climate change – which is pretty much the trajectory we are on – sea-level rise, and the consequent impact on nesting sites, shapes up as the biggest threat for the turtles from now until 2030. But by 2070, the models anticipate sands will have reached a temperature which would bring about a near-complete feminisation of hatchlings.

A few male enclaves are likely to survive where conditions provide some respite from the heat. But the overall picture is grim.
Sydney Morning Herald, 30 Apr 2011

fifty shades of turtles

Even though sea turtles tend to live in warmer waters, the climate changes do affect their natural habitat. The climate is also believed to affect the sex of the younglings.

So if they temperatures continue to significantly increase it is believed that there will be many more females than males in the world. Yet these males likely won’t be able to keep up with the need of the females when it comes to reproduction.
Sea Turtle World, undated