Due to climate change, cases of malaria are on the rise in Kenya. Here the nights are no longer cool enough to prevent mosquitoes from breeding. Kenyans are using mosquito nets and even rap music to help stop the spread of the disease. Also on the show: The Białowieza national park, Europe's last primeval forest, is home to plants and animal species found nowhere else in the wild.
Malaria is a growing problem in the Kenyan highlands. Because the nights are getting warmer and rain more frequent, mosquitoes that carry the disease are multiplying rapidly.
Aid agencies and NGOs have joined forces with the World Health Organization to focus on prevention. The Kenyan NGO Alliance Against Malaria distributes free mosquito nets and uses rap music to teach children about the disease.
In many parts of the world people can't access the medications they need. The high cost of some brand-name drugs means they are out simply of reach for many. They rely on generic medicines - copies of brand-name drugs.
Now India has relaxed its patent laws and plans to produce even more generic drugs for the world market. Humanitarian organizations have applauded the move, but naturally the pharmaceutical industry is not pleased.
Kemide Rodriguez runs a popular fruit stand alongside Colombia's Highway 45, which runs between Bogotá and Santa Marta. Truckers, farmers and tourists stop off here to stock up on fresh and healthy snacks.
People may say there's plenty of fish in the sea, but fisherman Paolo Fanciulli knows that their numbers aren't infinite. He and his colleagues earn their living from the sea. The Italian acknowledges that there "needs to be a balance between profit and environmental protection."
So, together with the Italian authorities, he's helped sink hundreds of concrete blocks into the sea. They've been put there to tear the illegal nets used by large fishing trawlers.
Białowieza is Europe's last primeval forest. Located in eastern Poland, this national park is home to many endangered species - like the European bison.
The Białowieza Forest has been in existence for over 10-thousand years yet remains virtually unspoiled. This led UNESCO to declare it a World Natural Heritage Site in 1979.