Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...
Hosted on MSN
The World's Bluest Lakes Ranked by Clarity
When nature crafts its most stunning masterpieces, few things rival the breathtaking beauty of a lake so clear you can see straight to its depths. These extraordinary bodies of water act like liquid ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback