Six million years ago, the Mediterranean Sea wasn’t nearly as picturesque as it is today. It was barely even a sea; tectonic activity had raised a mountain range in the Strait of Gibraltar ...

Mother Earth is clearly urging a call to action. Nature is suffering. Oceans filling with plastic and turning more acidic. Extreme heat, wildfires and floods, have affected millions of people.

Ever wonder what your street looked like in the 1980s - or even the 30s? With Google Earth's historical imagery feature, you ...