The five famous Great Lakes in North America—Superior ... Despite being one of the world's clearest and oldest freshwater lakes, Lake Baikal's water isn't typically safe to drink without ...

The average annual ice cover over the Great Lakes region responds very closely to seasonal changes in annual temperature. However, each lake exhibits its own individual response and timescale ...

Lake Superior is the largest and northernmost of the five Great Lakes. The freshwater lake features dozens of lighthouses and a national park. The lake's history also includes high-profile ...