Climate change gas hurts seas too

Scientists are worried that the gas they blame for climate change may also be damaging the world’s oceans.

They studied tiny, tiny creatures in the sea and found that they’re not growing as well as they used to.

They think it’s because the seas are now too acidic for the creatures, as a result of increased carbon dioxide.

A group of children from a school in Plymouth have made a film about the issue, which scientists are calling the The Other CO2 problem.

In 2008 the school beat others from across Europe to win a contest to make a film about climate change.

As a result they were asked by the European Project on Ocean Acidification (EPOCA) to make a short film on ocean acidification.



The creatures the scientists were looking at are only as big as a grain of sand.

They live at the top of oceans and pull carbon dioxide out of the air to make their shells with. That helps slow down climate change.

If the creatures aren’t using the CO2 to make shells it stays in the air, which could make climate change happen more quickly.

It could be our fault

Carbon dioxide also gets absorbed by the water in the sea. Because more is being created now than there used to be, the oceans have become more acidic.

Acids can be dangerous to animals and plants. Some experts say higher levels of acids are linked to the time when we started using electricity and gas.

BBC News (CBBC), 11 March 2009. Article.

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OA-ICC HIGHLIGHTS

Ocean acidification in the IPCC AR5 WG II

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