In Resolution 40/202 of 17 December 1985, the UN General Assembly designated the first Monday of October of every year as World Habitat Day. In 2011, World Habitat Day is commemorated on 3 October.

In 2011, the theme of World Habitat Day is Cities and Climate Change. The effects of urbanization and climate change are converging in dangerous ways. The results of this convergence threaten to have unprecedented negative impacts on quality of life, and economic and social stability.

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