Submission on the Proposed Zero Carbon Bill

Even though the importance of controlling global warming has become increasingly clear and more widely understood over the past 30 years, to date we have not set meaningful targets to significantly reduce emissions and we have not had any mechanisms in place that seem to have had any significant effect on driving reductions in emissions. Hence our net emissions have just continued to increase through most of this period.

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Ocean Acidification – The Other CO2 Problem

Ocean acidification (OA) has been described as “global warming’s evil twin” and is considered by many scientists to be one of the greatest environmental challenges to marine organisms in the 21st century. Long-term records have shown a decrease in average ocean pH of 0.1 units since the beginning of the industrial age (from 8.21 to 8.10), and pH is expected to decrease a further 0.3 to 0.4 units by 2100, resulting in seawater that contains 150% more H+ than present.

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