A group of scientists believes a plan to transform the Australian outback and Sahara Desert into forests could eliminate the threat of global warming. The plan, outlined in a paper published in the Journal of Climatic Change, calls for fields of fast-growing eucalyptus trees to cover the desert. The trees would be watered by seawater treated by coastal desalination plants and would create their own water system and rainfall and draw down more than 8 billion tons of carbon emissions per year.

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