oa CSIR Science Scope - Iron is key to Southern Ocean productivity, but geo-engineering is not an option : a changing planet - the ocean
|Article Title||Iron is key to Southern Ocean productivity, but geo-engineering is not an option : a changing planet - the ocean|
|© Publisher:||Council for Scientific and Industrial Research (CSIR)|
|Journal||CSIR Science Scope|
|Publication Date||Nov 2011|
|Pages||20 - 21|
Why did CO2 levels oscillate between around 150 parts per million (ppm) during glacial periods and around 250 ppm during interglacials? And why has the answer to this question led to proposals that climate change might be effectively mitigated by dumping tonnes of iron sulphate into the waters of the Southern Ocean?
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