World habitat day focuses on cities and climate change
![Vancouver photo by flickr user ecstaticist, CC BY-NC-SA 2.0, http://www.flickr.com/photos/ecstaticist/3423689554/](/sites/default/files/styles/landscape_16_9/public/22438_vancouver%5B1%5D.jpg?itok=e4tUtXeN)
The World Habitat Day 2011 has been celebrated in Aguascalientes, Mexico. According to UN Habitat, UN Secretary-General Ban Ki-moon declared: 'Prevention should be addressed through better urban planning and building codes so that city residents, especially the poorest, are protected as far as possible against disaster. Such measures can also help to keep their ecological footprint to the minimum.' Furthermore, the impacts of climate change on its cities and populations have been the main themes addressed.