Nelson Mail

NZ needs a climate change plan

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the choices plainly enough. The OECD’s once-a-decade take on New Zealand’s environmen­t points out that the country’s emissions have risen in recent years. It says New Zealand is approachin­g the ‘‘environmen­tal limits’’ of its agricultur­e-heavy growth model, and must make changes if it wants to curb emissions, such as bringing farming into its Emissions Trading Scheme.

Meanwhile, research commission­ed by a cross-party group of MPs lays out several scenarios – from business-as-usual to ambitious options that include cuts in the national dairy herd, aggressive use of emerging technologi­es and extensive new forestries. Both reports acknowledg­e New Zealand’s special challenges: unlike most other countries, its energy sector is already largely ‘‘decarbonis­ed’’ (renewable); and its large proportion of agricultur­al emissions are hard to cut without economic pain.

The OECD also points out that transport emissions here are unusually high with the highest car ownership rate among developed countries; very large public spending on roads; and unusually low petrol taxes. What can be the justificat­ion for all of this in the age of climate change?

On agricultur­e, the OECD suggests that bringing farming into the ETS – or applying other taxes to the sector – would ‘‘provide much-needed policy certainty for the agricultur­al sector, encourage investment and accelerate innovation’’. The Government will no doubt say it is funding research on agricultur­al emissions. But what about the power of incentives for farmers? A better strategy would gradually introduce farming into the scheme, with time to plan, trial new technologi­es and make changes to the size of herds or land use if that is the smartest response.

For now, it seems the Government’s plan is to buy its way to its Paris targets; internatio­nal carbon credits will apparently make up 80 per cent of the effort to drop emissions by 2030. There’s nothing theoretica­lly wrong – if the markets are credible then it doesn’t matter how global emissions come down. But credits are likely to run to billions of dollars and keep growing.

So we need a plan – and a willingnes­s to grapple with the trade-offs involved in answering to this global crisis.

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