7 SMEs making US cities smarter and greener

We are all working towards a shared future in which our cities are greener, smarter and more inclusive. Some are helping us move across cities; others are improving our quality of life by detecting air pollution. Others are helping protect the environment by supplying clean and renewable energy.

Every month we will share companies with inspiring missions that are making city life better.

Today’s focus is on 7 ambitious US-based companies creating urban planning, air pollution, mobility and clean energy solutions.

Economic development in secondary cities

More than 56.2% of the global population now lives in cities. By 2050 68% of us will live in cities. We are moving towards what Shlomo Angelo described as the “Planet of Cities” – a global system of cities becoming more and more intricately connected.

Today, 40% of the world’s population lives in what we call secondary cities. As the population grows, so will the number of people living in those cities.

Secondary cities are rapidly growing urban areas in developing countries that are experiencing unexpected growth and development. They are defined by their population, size, function and economic status, and neighbouring and distant cities. City population can generally range from 200,000 to 2.5 million; however, the size of cities is largely dependent on a country’s population and that of its capital or biggest city. For instance, secondary cities in China have populations well over 5 million, whereas, in Ethiopia, they are less than 200,000.