Welcome to this week's eco@africa

On the latest eco@africa, we once more bring you the greenest stories from Europe and Africa. 

We go to Cameroon, where water shortages in the country's major cities are making life difficult for residents. One entrepreneur hopes to help ease the problem with his solar-powered, water-saving car wash. 

We also take a trip to Germany to find out about a chance invention that could help mop up oil spills and then look to Austria to find out about a foldable, self-charging bicycle. 

In Ghana, we meet biologist Gilbert Adum, who has devoted himself to conserving the endangered giant squeaker frog. And in Kenya, we find out how Eco Manyatta Housing is bringing green technology and electricity to traditional Maasai homes. 

Check out the show and let us know what you think at [email protected].