Seeding the Seas with Iron

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Could sprinkling iron across the oceans prevent global warming? Sadly, it appears not. Since phytoplankton are the largest carbon dioxide sink on earth, larger than even all terrestrial plants, one idea was to dust the oceans with iron to feed phytoplankton. Scientists hoped the little organisms would quickly sink to about 300 meters, beyond the reach of that zooplankton, one level up on the food chain. Unfortunately, small-scale tests found that instead of sinking to the sea floor, the extra phytoplankton get quickly eaten by zooplankton, who metabolize and re-emit the carbon. Too bad. Still, a research ship is seeding waters around Galapagos anyway, just to bring attention to the role of phytoplankton in climate change.

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DEMOCRACY DOES NOT EXIST...

without free and fair elections, a vigorous free press, and engaged citizens to reclaim power from those who abuse it.

In this election year unlike any other—against a backdrop of a pandemic, an economic crisis, racial reckoning, and so much daily crazy—Mother Jones' journalism is driven by one simple question: Will America will move closer to, or further from, justice and equity in the years to come?

If you're able to, please join us in this mission with a donation today. Our reporting right now is focused on voting rights and election security, corruption, disinformation, racial and gender equity, and the climate crisis. We can’t do it without the support of readers like you, and we need to give it everything we've got between now and November. Thank you.

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