Cairo, Egypt is the capital of the Arab world and the largest desert city on the planet. For centuries it has thrived alongside the Nile, the world’s longest river.
Dhaka, Bangladesh – the capital of the most densely populated major country in the world – is also the planet’s fastest growing city.
China is building the world’s largest airport, the Beijing Daxing International Aiport, to serve the Jing-Jin-Ji megalopolis.
South-to-North Water Transfer Project: The huge populations filling China’s northern megacities have a shortage of the single most necessary resource for life: water. To solve that problem, the Chinese will soon be moving 44.8 billion cubic meters of fresh water each year from the wetter South to the dryer North.
Mexico’s vast capital — Ciudad de México, the largest city in the Americas — is threatened by a severe water crisis.
America is changing how it gets its energy, and coal is losing out.