How to pronounce “shrivel”(verb) in English

In addition, the thickness of Arctic sea ice is decreasing even more dramatically and of course the thinner the ice the most vulnerable to further melting it becomes.The Arctic sea ice has shriveled so much in thickness that the total volume of sea ice still remaining at the end of the melt season in September of 2011 was nearly 70 percentless than the average volume of sea ice that existed from 1979 to 2000.