What We Like: 
Fragile Earth is a stunning photography app giving a birdseye view of climate change, urbanization and nature’s raw power – in which rivers flood and dry up, mountains erupt, glaciers melt and cities sprawl outward. Powered by the HarperCollins Publishers' API, Fragile Earth contains some of the best environmental images showing before and after scenes of our natural world. This is one of the top photography apps for showing the changing world giving you detailed ecological snapshots from around the globe. See years pass under your fingertips with our innovative swipe action. Explore how Dubai has grown from a small city to a thriving metropolis over the last 10 years, or how the notorious Warming Island got its name since 1985. It's like seeing history happening right before your eyes!
API: 

http://developer.harpercollins.com/

Application URL: 

http://itunes.apple.com/us/app/fragile-earth/id515226237?mt=8

Platform: 
iPad
iPhone