If we helped whales return to their pre-whaling numbers of 4- to 5 million (up from 1.3 million today), researchers say they could capture 1.7 billion tonnes of CO2 annually - with the cost of protecting them at just $13 per person a year.
@crackurbones why? Whales belch and fart more CO2 than cows. What does a whale do to store CO2? Green things turn CO2 into o2 and sugar. But I don't think whales do much sequestration. But they do make more ambergris so bring it on!