World Cities Day

Cities occupy 2% of the world’s total landmass, but contribute to 70% of the world’s economy (GDP), 60% of its energy consumption, 70% of its greenhouse gas emissions, and 70% of the world’s waste. Urbanization provides the promise — oft not...

World Habitat Day

In use since about 1755, the word habitat derives from the Latin habitāre, to inhabit, from habēre, to have or to hold. Human habitats are places where people live and where they can find all things that they need to survive. World Habitat Day is to reflect on the...

International Day of the Tropics

The Earth’s tropics lie roughly in the middle of the globe between the latitude lines of the Tropic of Cancer and the Tropic of Capricorn; and include the Equator and parts of North America, South America, Africa, Asia and Australia. Tropical locations are...