Whale tail.Photo courtesy nestor galina via FlickrAnti-whaling advocates can take a giant load off their shoulders. An article on Treehugger shares yet another reason not to whale on whales: They crap ecosystem gold.

Ocean acidification, caused by seawater absorbing too much carbon dioxide, is a major problem facing marine ecosystems. As water’s pH drops, so does aquatic organisms’ ability to photosynthesize and absorb nutrients.

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One geoengineering quick fix is to plunk iron into the ocean, fertilizing the entire food chain and encouraging marine plant growth. But holy crap — researchers recently discovered that when whales eat iron-rich krill, they naturally fertilizer the water themselves. 

Let’s hope the anti-whaling movement finds new fuel in this. Because why drop iron into the ocean when whales can naturally dump it for you?

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