This week’s eco@africa travels across continents to bring you innovative bright ideas for a greener planet.

First we visit the Serengeti, where an exploding human population and growing demand for grazing areas means wildlife are increasingly coming into conflict with people over scarce land – but an organization is trying to reduce the tension.

Next, we travel to Cameroon and meet an engineer who is sharing his knowledge of renewable energy, gained in Italy, back home by training young people on working with solar panels.

Then we go to Germany and meet a teenager who is turning her passion for butterflies into a way she can help the environment.

After that, we check out an ingenious way to combat the Cameroonian city of Douala’s mounting waste management problem: a more eco-friendly form of coal made of household waste.

We then stop off at Nigeria, where old car tires usually destined for the dump are being turned into beautiful furniture instead.

Finally, we go to Ghana, where an African-German initiative is tackling the country’s waste problem by collecting trash to sell to a local recycling company.

Check out the show and let us know what you think at ecoafrica@dw.com.