The doors to our Whitianga and Paeroa offices will be closed for the summer break from 4pm on Friday, 20 December, while our Taupō and Hamilton offices will close for the summer break at 1pm on Tuesday, 24 December. All offices will reopen on Monday, 6 January 2025. To report air or water pollution, unsafe water activities in or on a river, lake or harbour, or make a general enquiry or information request during this time, call us 24/7 on 0800 800 401.

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Ocean acidification

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  4. Ocean acidification

Between one quarter and one third of all the carbon dioxide (CO2) we produce ends up in the ocean. While this slows the rate of climate change, it also has negative impacts on the chemistry of the ocean as it causes the water to acidify.