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The level of acidification in these places simulates what the global oceans might look like if we keep on emitting carbon dioxide. And the new data gathered by a Plymouth University team indicates the world’s oceans could lose up to 30% of their biodiversity by 2100. Dr Jason-Hall Spencer led the research at volcanic vents in Europe, the US and in Asia.
What we notice, unfortunately, is there’re very dramatic shifts in the ecosystem. There’s a tipping point that occurs at about the levels of ocean acidification we expect to see at the end of this century, but even before that – even within the next few years – the water becomes corrosive to the shells of organisms, and some corals can’t survive.
The scientists warn that the rates of change seen in our oceans are unprecedented in the recent Earth history, and the damage our seas are on course to sustain could take thousands, even millions, of years to correct.
Words and definitions |
||
absorb |
əbˈsɔːb |
taken in |
fossil fuel |
ˈfɒsl ˈfjuːəl |
fuel such as coal or oil, that was formed over millions of years from the remains of animals or plants |
corrode |
kəˈrəʊd |
gradually destroying |
coral |
ˈkɒrəl |
a hard substance that is red, pink or white in colour, and that forms on the bottom of the sea from the bones of very small creatures. Coral is often used in jewellery |
simulate |
ˈsɪmjuleɪt |
creates particular conditions that exist in real life using computers, models, etc, for research |
deteriorate |
dɪˈtɪəriəreɪt |
become worse |
emit |
iˈmɪt |
giving off, releasing |
indicate |
ˈɪndɪkeɪt |
shows |
biodiversity
|
ˌbaɪəʊdaɪˈvɜːsəti |
the existence of many different kinds of animals and plants |
vent |
vent |
an opening that allows air, gas or liquid to pass |
dramatic shift |
drəˈmætɪk ʃɪft |
big changes |
a tipping point
|
|
the point at which many small changes reach a level where a further small change has a very great effect |
unprecedented |
ʌnˈpresɪdentɪd |
has not happened before |
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