These Nasa images show how our planet has changed over the years

NEW DELHI: Nasa has released a collection of images called the 'Images of Change' which shows how human habitation and interference with the nature has changed the face of Earth over the years. These comparative images range from five to 100 years. Here are a few of the pictures from its collection:

Bear Glacier melt, Alaska
1980 - May 16, 1989


The images show the shrinkage of Bear Glacier from 1980 to 2011. Warming has led to less snow formation and thus less material for glacial growth.

Shrinking Aral Sea, central Asia
2000 - 2014

The black outline shows the approximate coastline of the lake in 1960. By 2000, the Northern Aral Sea had separated from the Southern Aral Sea, which itself had split into eastern and western lobes.

Shrinking Mýrdalsjökull ice cap, Iceland
1986 - 2014
In the 2014 image, the depressions at the Mýrdalsjökull are ice cauldrons caused by geothermal heat from below. Most of the monitored glaciers have been shrinking since the 1990s.

Imja Glacier melt, Himalayas
1956 - 2007

The latter image shows pronounced retreat and collapse of the lower tongue of the glacier and the formation of new melt ponds.

Arapaho Glacier melt, Colorado
1898 - 2003

Arapaho Glacier has shrunk dramatically since it was photographed in 1898.



(Pictures: NASA)