15 ‘Then and Now’ Photos That Show Dramatic Changes on Earth
Liaoning, China, March 2002
On March 23, 2002, the Liaoning region of China had relatively clear skies. But by April 8, 2002, the area endured a day of extremely dusty skies.
Liaoning, China, March 2002
On March 23, 2002, the Liaoning region of China had relatively clear skies. But by April 8, 2002, the area endured a day of extremely dusty skies.