A university in Germany has hit upon an eco-friendly way for its students to charge their phones while working out at the same time: bikes that harness power while they pedal.

Gourmets in China pay crazy prices. One kilo of dried sea cucumber fetches up to $1,000. Breeders in Madagascar's Tampolove village are protecting their marine ecosystem while earning extra income.

In huge car graveyards components often get a second chance at life. Recent premiums to trade in dirty diesels for new cars mean that lots of nearly new parts are there for the taking.

When it ends up untreated in the environment, cooking oil can cause serious problems. One entrepreneur in Cameroon wants to clean up in more ways than one by turning the stuff into soap and detergent.

With big challenges such as climate change impacting agriculture, a new program aims to equip young farmers with the skills to work sustainably.

In the search for sustainable materials in the fashion world, many designers are tirelessly resourceful. Now a Spanish firm has developed a material made from pineapple fibers that can be used as a vegan alternative to leather.

Many consider vegetarians the new superheroes. They eat no meat and so have a reduced carbon footprint. But is that really true? An avocado can actually do more damage to the environment than a steak. Environmental vegetarianism — fact or fiction?

Organic food in Morocco? There's an app for that. A startup from Casablanca wants to transform this fast-growing but still niche market in the African country with its e-delivery service.

An entrepreneur in Ghana has introduced a technology that is turning organic waste into biogas. The technology has the potential to replace the use of firewood and reduce the rate of deforestation in the country.

Africa Global Recycling is a business recycling, sorting and selling sorted waste mostly back to Asia and Europe. Founded in 2013 they managed to reduce the dumping of waste in the capital, Lome, by half.