<human>:  How does climate change and global warming affect the oceans?
<bot>: Climate change and global warming cause the oceans to warm, leading to an increased rate of evaporation. This results in rising sea levels, increased ocean acidification, decreased oxygen levels, and changes to ocean circulation patterns, all of which can have a negative impact on marine ecosystems. Warmer waters can also cause more frequent and severe storms, and destructive events like coral bleaching can occur. These changes can disrupt traditional fishing grounds and habitats, making it more difficult for fish, marine mammals, and other species to survive.