Science journalist Rachel Cernansky joins host Sarah Crespi to talk about progress on Africa’s Great Green Wall project and the important difference between planting and growing a tree.
Sarah also talks with Václav Kuna, a postdoctoral researcher at the Institute of Geophysics of the Czech Academy of Sciences, about using loud and long songs from fin whales to image structures under the ocean floor.
Development banks and states pledged a total of $14.32 billion over the next four years to build a “Great Green Wall” to help contain desertification in Africa’s northern Sahel region. But what exactly is it and how much progress has been made?
The Great Green Wall or Great Green Wall of the Sahara and the Sahel is Africa’s flagship initiative to combat the increasing desertification. Led by the African Union, the initiative aims to transform the lives of millions of people by creating a mosaic of green and productive landscapes across North Africa.
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