In Windhoek, SunCycles is making e-bikes powered by solar power, which are mobilizing more and more small businesses in Namibia, one of the sunniest countries in the world with an average of 300 days of sunshine a year.

Not far from the capital Abuja you can find the largest house made from plastic bottles in Africa. Over 200,000 bottles went into creating the construction, making use of the discarded plastic in the country.

A new saving cooperative has turned traditional gender roles upside down in one of the country's villages. With the support of an NGO women come together to grow and sell vegetables - even in the dry season.

Joining the growing Fridays for Future movement, we speak to the school kids striking in Germany's capital city. Phasing out coal by 2030 is one of their key demands.

20 years ago local village chiefs founded a conservation programme to protect pygmy hippos. The programme is a success and the number of hippos has increased from two to almost 40.

Inspired by Kenya’s plastic bag ban, South Sudan, recovering from years of conflict, has followed suit - with results. Authorities say pollution is down by up to 50 percent in the capital - but challenges lie ahead.

African wild dogs are one of the most threatened carnivores in Africa. There are only a few thousand left. In Zimbabwe, the Save Valley is one of the last protected areas for these animals.

In a bid to reduce unemployment and get around rising energy costs, Sunny Akpoyibo founded a ‘solar academy’ in Lagos. There, people can learn how solar panels work, and how to install and repair them.

Most tires have to be changed regularly, long before the rubber starts to crumble and becomes a safety issue. But rubber is extremely long-lasting - with great recycling potential, from rubber mats to rainproof bags.

Across Africa, apes are under threat, but in Uganda, they’ve found one of their largest sanctuaries. Kibale Forest National Park is widely seen as the primate capital of the world, suggesting ecotourism there is working.