Tuesday, June 2, 2009

How Things Change in 10 Years

A special series of NASA satellite images documenting how our world—forests, oceans, human landscapes, has changed during the previous decade.


2000

The Aral Sea Disappears


In a series of photos taken by NASA, you can observe the dramatic disappearance of the Aral Sea in a relatively short period - between 2000 and
2009.NASA has been able to capture the disappearance of the Aral Sea from space. In the 1960’s Russia diverted water from several major rivers to irrigation projects for growing cotton and other crops. The result has been the complete destruction of one what was once the fourth largest inland sea in the world.
NASA’s ability to document this entirely unprecedented event is not only fascinating, but it’s a lesson to how quickly entire ecosystems (and the societies that rely on them) can collapse. The Aral sea was once surrounded by villages that relied on the Aral seas fisheries. Those towns are now all but deserted, and fishing boats sit on dry land.


2004
2008
2009

2000

Urbanization of Dubai



To expand the possibilities for beachfront tourist development, Dubai, part of the United Arab Emirates, undertook a massive engineering project to create hundreds of artificial islands along its Persian Gulf coastline. Built from sand dredged from the sea floor and protected from erosion by rock breakwaters, the islands were shaped into recognizable forms, including two large palm trees.
In these false-color images, bare ground appears brown, vegetation appears red, water appears dark blue, and buildings and paved surfaces appear light blue or gray.


2002
2004
2009

2000

Amazon Deforestation


The state of RondĂ´nia in western Brazil is one of the most deforested parts of the Amazon. In the past three decades, clearing and degradation of the state’s original 208,000 square kilometers of forest (about 51.4 million acres, an area slightly smaller than the state of Kansas) has been rapid: 4,200 square kilometers cleared by 1978; 30,000 by 1988; and 53,300 by 1998. By 2003, an estimated 67,764 square kilometers of rainforest—an area larger than the state of West Virginia—had been cleared.


2002
2004
2008