Marine ecosystems are changing as ocean temperatures rise according to Global Change Biology. Remember, when thinking about the future, it’s not what happens, but what happens because of what happens.

One example of “what happens because of what happens” is the overfishing of marlin and shark off of the California coast. That is what happened.

What is happening because of this?

The numbers of aggressive squid appears to be growing near inhabited beaches, making them even more dangerous for swimmers and divers. ABC News in Los Angeles, for example, reported an explosion in the squid population off the southern California coast.

What happens because of this? We’ll see.

But a possibility may be that swimmers may no longer fear the shark fin but fear the squid tentacle. Imagine this: rather than being attacked by a shark, a swimmer is dragged by the feet hundreds of feet under the sea until their ears explode.

Ok, enough Hollywood. Back to the warming waters of the Atlantic.

The consequences of warming waters is that fish accustomed to warmer waters are pushing into the North Atlantic. Will cold water fish like Cod disappear and be replaced by Sardines? And, the million dollar question, what might happen if this happens? The potential consequences are many and, as of yet, unpredictable.