The Baltic Sea froze over twice in 1303 and again over the winter of 1306 to 1307. For many years following there were cold storms and heavy rains, resulting in a rise in levels in the Caspian Sea.

The Caspian Sea in Central Asia, however, is by far the largest lake worldwide at a staggering 386,000 square kilometres, or 149,053 square miles. This area is approximately equal to that of Japan ...

New counts of wintering Bewick's Swans between the eastern Mediterranean and Caspian Sea suggest the number of individuals is ...

Environmental activists are alarmed over the rapidly declining water levels of the Caspian Sea, highlighting the urgent need for action. The falling water levels pose significant threats to the ...