15 ‘Then and Now’ Photos That Show Dramatic Changes on Earth
Liaoning, China, April 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, April 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.