Unit 5: impacts of climate change on oceans. Co2 in atmosphere: storms are more dangerous, causing more floods. Bergin land bridge that connected alaska to siberia: led to human settlement and animals migration, over past 20,000 years, sea level has climbed ~400 feet. Other contributions: as ice caps melt, gravitation pull on earth will change, affecting local sea level in complicated ways, sea levels may rise in some places and drop in others. Scotland), while other are closer or even below sea level (ex. A few times a year, when the pull of the sun and the moon align to join forces, coasts are hit with extra-high tides called king tides. While king tides are normal, their recent impacts are not. Thanks to sea level rise, king tides reach higher and further inland now than they did 20 years ago, causing flooding in miami and along florida"s coast.