Coming out of the cold, wet winter, I am greeted by summer temperatures: The fertile and beautiful landscape of Rwanda lies before me. The small country lies in the heart of East Africa. With around 12 million inhabitants, it is one of the most densely populated countries in the world. Despite its location close to the equator, the temperatures are comparatively pleasant due to the altitude. I start in the capital Kigali and am immediately impressed by the cleanliness of the streets. Rwanda has a large number of initiatives and laws against environmental pollution, such as the ban on plastic bags, which has been in force throughout the country since 2008. It is no exaggeration to say that Kigali is the cleanest city in Africa.