Ocean Warming

Another impact of ocean warming is the rise of sea levels. Sea level rise is caused by increased water temperatures that melt glaciers and ice caps, further increasing ocean water levels. Since 1880, sea levels have risen around 9 inches (Lindsey, 2021). This is an important issue for humans, as in the United States, 40% of the population lives in a coastal area that is potentially vulnerable to rising sea levels (Lindsey, 2021). This would impact the infrastructure of the communities and put individuals at risk. Rising sea levels are a major problem that could be slowed or could continue if we as humans don’t change our behaviors. 

​

Ocean ecosystems are experiencing the effects of ocean warming firsthand. Species in the poles are a prime example as they are at risk of habitat loss due to melting ice caps and glaciers. Polar bears are forced to travel great distances to find suitable habitats, and their main food source, seals, is threatened due to the loss of ice, which they need to raise their young. Without a reliable food source or habitat, polar bears as an entire species are at risk. On the other side of the world, marine ecosystems near the Great Barrier Reef are also experiencing the effects of ocean warming. The Great Barrier Reef is home to thousands of different species that rely on each other to maintain a functioning ecosystem. Coral is crucial to species survival within the Great Barrier Reef because it provides habitat and food. However, coral can’t tolerate extreme temperatures, and even a slight increase in water temperature can cause them to die. Coral also experiences thermal stress, which is caused by higher ocean temperatures and leads to coral bleaching. Coral bleaching is when coral turns completely white and becomes vulnerable. Warming waters affect ecosystems throughout the ocean and negatively alter how they function. 

​

​