Across the world climate change is worsening droughts and it's bringing up the past, literally. In Texas, these dinosaur tracks from 113 million years ago were exposed. Near the Hoover Dam, dropping water levels are revealing human remains.
World War II battleships are emerging in Europe, still loaded with unexploded bombs. A bridge, built by Emperor Nero 2,000 years ago, is now visible in Rome. Messages from the past have been found too.
These hunger stones in the Czech Republic were carved the last time the water got this low, as a warning to future generations that the lack of water could lead to another famine. One reads, If you see me, weep. From dinosaur tracks to sunken ships, Roman ruins and forgotten bombs, our world's climate is changing before our eyes, and it's bringing back the past. So what does this mean for our future?