Interesting facts about the Caspian Sea + Tourist Photos

Human-constructed dams built during the last two centuries have also changed water levels. Scientists theorize that tectonic movement and sedimentation changes could be other factors. In recent years, climate change has played a major role. More extreme weather patterns have increased rainfall in Russia, which brings more water into the Volga River and Caspian Sea. But scientists have also seen evidence that overall warmer temperatures could cause the Caspian Sea to dry up.