Demand for endangered plants used in traditional remedies in South Africa is growing. But a plant nursery is trying to help species like the pepper-bark tree – whose seedlings can no longer be found in nature.

In Dghoumes National Park in southern Tunisia, conservationists are reintroducing animals which had almost disappeared, like buzzards, gazelles and ostriches to the area after extensive reforestation efforts.

From an Amsterdam supermarket which has become the first in the world to open a plastic-free section to a Berlin store which has cut out plastic completely: we visit two pioneering stores taking a stand against waste.

Drying fruit and vegetables in the sun is the traditional way to preserve them. But out in the open they are exposed to bugs, dirt and weather. A women’s initiative has constructed a solar drying tent, which does the job of drying faster and more efficiently.

Ivory Coast is the largest agricultural producer in West Africa - and most farmers use chemical fertilizers. But an eco-friendly business based in the capital Abidjan has found success producing organic alternatives.

In 2008, Rwanda banned single-use plastic bags. Despite this plastic in many other forms is still being used and distributed everyday. Yet the bag ban has sparked many other new recycling ideas.

There were none left in Uganda until the Rhino Fund imported a few and started a breeding program. Now there are 24 at its sanctuary in Ziwa, protected by a large team of rangers.

Just a small amount of the millions of tons of e-waste produced annually is disposed of properly and that's bad for the environment. One German company is on the case — and cashing in with recycling.

A 19-year-old student in Cameroon learned how to make soap from her grandmother. But even though the recipe is old, her business model is quite modern and she is already supplying shops and beauty salons.

Former farmer Brian Oldreive, who lost his farm during Zimbabwe's chaotic land reform, wants to help rather than hinder the changes by training farmers to use eco-friendly methods thus preserving soil and saving wildlife.