Year 4, Month 9, Day 22: Why People Tear The Seam Of Anyone’s Dream Is Over My Head

Oceanic ecosystems are coming undone, notes the LA Times:

As climate change heats our oceans, you’d expect temperature-sensitive marine species to flee poleward to cooler waters. So why have some headed to warmer regions toward the equator?

Scientists have solved the puzzle. For the most part, these animals are relocating to cooler waters. But since the effects of climate change can vary widely across regions, sometimes those cooler regions are closer to the poles and sometimes they’re closer to the equator.

In other words, marine animals are still reacting to climate change, but at a local scale. And they’re doing it so reliably that you can actually measure the speed and direction of those changes by watching where animals go, according to a study published Thursday in the journal Science.

Just another day in the Solar System. September 14:

As climate change’s effects grow more intense, we’ll see more plant and animal species on the move; the transformation of the world’s ocean populations is just one example of something that’s happening everywhere we look. But the heart of the story isn’t that creatures are traveling to more salubrious locales. The intricacy and variety of Earthly life is created by the interactions between life-forms; local and regional habitats have evolved over thousands of years to support symbiotic relationships in a richly interwoven tapestry.

A particular type of fish moving where the water is cooler doesn’t sound like that big a deal — but it could easily spell disaster for other species in an interdependent oceanic environment. When the web of life unravels in one location, it will have impacts everywhere. With billions depending on the seas for their sustenance, the news of ecosystem disruption is bad news for everyone.

Warren Senders

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