Completed in 2009, the Burj Khalifa, in Dubai (United Arab Emirates), is currently the tallest skyscraper in the world, with a height of 829.8 metres (2,722 ft). It shows a typical skyscraper feature: setbacks. A skyscraper is a tall, continuously habitable building having multiple floors. When the term was originally used in the 1880s it described a building of 10 to 20 floors but now describes one of at least 40â50 floors.
Beyond the Sweatshop: poverty footprints and supply chains. 1  Oxfam's Poverty Footprint project identifies five social impact metrics - building on the example of successful schemes measuring environmental impact.
Perhaps the most obvious examples of a negative human impact on the environment is water pollution. It's obvious we need water to survive but few people realize how much we need and just how much is available. Consider these facts from the United Nations Environment Programme: