Why do they matter?

That's a very, very, very good question.

So a sustainable city is not simply about a green city or a technologically advanced city.

It's really a place where people can access adequate housing, basic services, economic opportunities, safe and affordable transport, public spaces, while they are also protected from pollution, climate hazards and disasters.

And it's also a place where citizens are able to participate in decisions about the cities themselves.

Now, why is this important? Africa is urbanizing faster than any other region.

Around 45% of Africans are living in urban areas, and it's projected that it will be about 60% by the time we get to 2050, when the urban population is expected to exceed 1.4 billion.

And so in conclusion and giving a recommendation, what is the way forward in realizing the sustainable development at scale for the continent practically?