Whales and dolphins face major threat from climate change – study

The impacts also include loss of dissolved oxygen and changes to ocean chemistry

A humpback whale breaches on Stellwagen Bank about 25 miles east of Boston (AP Photo/Michael Dwyer)

Whales, dolphins and seals living in US waters face major threats from warming ocean temperatures, rising sea levels and decreasing sea ice volumes associated with climate change, according to a first-of-its-kind assessment.

Researchers with the National Oceanic and Atmospheric Administration examined more than 100 stocks of American marine mammal species and found more than 70% of those stocks are vulnerable to threats, such as loss of habitat and food, due to the consequences of warming waters.