Terra Preta is a highly fertile mixture based on an old indigenous formula from the Amazon region. Farmers in Germany are using it to improve soil which has been exhausted by years of monoculture.
In 2018, record drought across Germany caused crop failures and left farmers struggling. Germany's meteorological office says the droughts were not a once off and is setting up an early warning system to help farmers.
On this week's Eco Africa, we're looking at how a plastic bag ban in Rwanda has sparked other recycling ideas, a solar drying tent in Nigeria and pioneering stores that are taking a stand against plastic waste.
On this week's Eco Africa, we check out hydroponic urban farms in Nigeria, art projects in Ghana's classrooms, a disappearing Senegalese village, and solar energy in Egypt's remotest areas.
On this week's Eco Africa, we check out mud homes in Ghana that are saving on energy costs, meet a Zambian cartoonist fighting climate change with comics and visit a project making pencils out of newspaper.
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