After decades of research, a pair of Russian scientists has demonstrated that if the diverse species of herbivores that once populated the subpolar region of the Arctic are brought back, permafrost melting can be prevented. Some perspective on the scope and implication of this proposal: If it came to pass, it would be the single largest solution or potential solution for global warming. The Optimist Daily reported earlier on this amazing project. You can read that story here.
A serious plan to reduce global warming: Resurrecting the mammoth
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