Some nice images.
See the Google Earth engine script for sentinel 2 and Landsat-8.
Sentinel-2 image taken on 11 March 2017.
Sentinel 2 image taken on 14 July 2016.
Find images of the Aral lake here.
Landsat-4 image of the Aral lake in 1988
Sentinel-2 image of the Aral lake in 2016.
Development of Hong Kong can be found here.
Hong Kong in 1989 as seen by Landsat-4
The same area in 2016
Letlhakane Diamond Mine
Satellite images of the Letlhakane Diamond Mine (here)
The mine in 1984 (landsat 4)
Greater Mekong area