Photographer Paolo Della Rocca waited six hours in freezing temperatures to capture a riveting moment between two snow ...

This year's contest featured a record-breaking number of entries. Here are the best nine images from over 22,000 photos.

Nations have reached a historic agreement to protect the world's oceans following 10 years ... nature and people can triumph over geopolitics," she added. Alexis Rosenfeld/Getty Images Marine ...