South African engineer and CEO of Green Design Vere Shaba is on a mission to make Africa's cities greener by designing energy efficient buildings for Africa.

In recent years, Europe has lost a lot of trees due to storms and fires following droughts. Now scientists are looking for solutions to protect the forests since replanting the same trees hasn't proved sustainable.

Malawian activist Gloria Majiga-Kamoto's efforts helped push the country's government to enforce a ban on thin plastics in 2019. And she hasn't stopped there. Improving national waste management is next on her agenda.

In India, an architect is mapping slums using satellite imagery. She's using it to create actual addresses for slum dwellers and make sure city officials know where to lay sewer lines.

Today in South Africa, 95% of energy is produced in large coal-fired power plants. But by 2030 the government envisions that most of the country's energy will come from renewable sources like wind, solar and hydropower.

A young Angolan inventor is tackling his community's electricity and waste problems with one simple machine: an "organic" generator powered by food scraps.

In northern Kenya, the Grevy's Zebra Trust came up with a program to help local female Masai trackers better understand the routes Grevy's zebras use. The knowledge makes living together easier.

An environmental activist in Uganda has made defending the Zoka Forest his life, despite receiving death threats from illegal loggers. He speaks to communities and has managed to covert a few loggers into activists.

A small startup is trying to tackle the mountains of used clothing that are shipped to Africa. Sydney Emeka and his team search secondhand markets and use the materials they find to make new things like suits.

In the face of widespread biodiversity loss, some scientists are creating clones to increase species numbers and genetic diversity. At the same time such projects are controversial. But could they really work?