Ocean acidification can affect seaweed and humans (podcast)

Ocean Acidification is usually discussed with the subjects of calcium based animals such as Corals, mussels and snails as they need Calcium to build their shells. Calcium will not be available as there is more CO2 in the Ocean. However, not all living Ocean beings will be negatively affected. Plants such as Seaweeds are predicted to thrive.

Many sushi lovers will breathe a sigh of relief at this news, but there is cautioned thrown their way. A new study was recently conducted on how the iodine levels in seaweed, and its consumers, will be affected in the presence of elevated CO2 levels as future IPCC reports suggest.

Iodine is important to humans as it regulates the thyroid hormones in your body. Too little or too much iodine could have serious effects on the body that could decrease human and animal health.

The results show consumers (fish and molluscs) that ate seaweed under increased CO2 conditions possessed elevated iodine concentrations, which means humans will be required to monitor the iodine levels in seaweed in the future to ensure it does not decrease the health in humans.

Andrew Lewin, Speak Up For The Ocean Blue, 13 December 2018. Podcast.

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