Agriculture and trade are important in South Africa. Refrigerated trucks cross the country every day damaging the environment with chemical coolants. But there is a greener natural way.
African healers use the pepper bark tree to fight everything from cancer to colds. But its medicinal properties mean it's also under threat from poachers. Can conservationists find the right remedy to protect it?
Much of Germany's North Sea coast is low enough to put it at risk from the waters at its door. Not least in an era of warming temperatures and predicted sea level rise.
Climate change and a growing population are prompting Germany's capital, Berlin, to rethink how it supplies water. An exceptionally hot and dry 2018 has made the matter even more urgent.
In Pilanesberg National Park poachers target rhinos every few days. We speak to park manager Johnson Maoka, about the challenges of his job and the future of wildlife protection
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