ocean warming and acidification will quite possibly cause mass extinctions.
There's no possibly about it. As soon as the oceans become too acidic for corals to form, whole ecosystems will collapse.
There's no possibly about it. As soon as the oceans become too acidic for corals to form, whole ecosystems will collapse.
I know we are really good at changing the environment, but the oceans are huge.
A pessimistic but plausible scenario has ocean pH decreasing by an additional 0.7-0.8 by 2300.
That's pretty fast. It's hard to predict how and how fast coral might adapt, but those are short time scales to expect evolution to act on.
... and a decrease of 0.7 is a 500% increase in H+ concentration. That sounds apocalyptic, at least for ocean ecosystems.
Warming and acidification are increasing jellyfish blooms, right? Do you know any good recipes for grilled jellyfish?
- coral typically takes several years before reaching sexual maturity. Adaptability to a changing environment strongly depends on this.
- corals typically occupy ecological niches.
- acidification directly interferes with a key part of their metabolism and habit. It's like asking whether mammals can't evolve to a life without skeletons.
Corals are an extremely diverse group of organisms that interact with other organisms through complex relationships. Take them away (or reduce them to a select few species that fulfill a fitness) and you're going to see lots of damage to other populations.