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Stinking climate problem

Masterton District Council’s Homebush wastewater treatment plant. PHOTO/SUPPLIED

MARCUS ANSELM

[email protected]

Sewage treatment is the biggest source of greenhouse gas emissions in Carterton and South Wairarapa, a draft paper has revealed.

The districts have written a shared Ruamahanga Strategy document, aimed at limiting council greenhouse gas emissions.

The paper said more than two-thirds [67 per cent] of Carterton District Council [CDC] emissions were from wastewater treatment.

In South Wairarapa, the figure was more than 80 per cent.

South Wairarapa District Council’s [SWDC] planning and regulatory committee would discuss the document at a meeting later today.

The paper identified wastewater treatment as both councils’ major source of greenhouse gases.

Greenhouse gases include water vapour, carbon dioxide, methane, nitrous oxide, ozone, chlorofluorocarbons, and hydrofluorocarbons.

Methane is produced in most wastewater treatment.

If extra amounts of greenhouse gases are added to the atmosphere, they absorb more of the infra-red radiation.

This increases temperatures on land, sea, and air.

Climate change advisor Melanie Barthe presented the document to South Wairarapa District Council’s Maori Standing Committee last week.

Barthe works at CDC and said the council was already taking steps to address the issue.

“Our goal is to reduce the volume of wastewater as it is the biggest greenhouse gas emitter.

“Our wastewater treatment plant upgrade is well underway which will also improve freshwater quality by removing treated urban wastewater effluent from streams.”

South Wairarapa Mayor Alex Beijen said the council was working towards reducing pollution to target figures.

The paper said more than 80 per cent of emissions in South Wairarapa came from wastewater.

“If we can reduce or have a more efficient wastewater treatment plant, not only does it satisfy community, iwi and ecological concerns, it will have an additional benefit of reducing our carbon footprint.”

He said the reductions would form part of the SWDC’s long term planning.

“From what I can tell from councillors, climate change is a priority and any initiatives will be well and truly considered in a favourable light.

“It will certainly be part of our decision-making process to a high level.”

Further north, Masterton District Council [MDC] will have its own climate advisor on staff soon.

MDC has been certified under the Toitu Envirocare’s carbonreduce programme.

The certification means MDC is officially recognised as actively working to measure and manage its carbon footprint, one of six in the country

Masterton councillor Chris Peterson has called on all local authorities to show leadership in emissions reduction.

He said councils needed to put real time and energy into their plans.

“We’ve got this building boom here.

“But the carbon footprint of these buildings, we don’t even know what it is, never mind how we might ameliorate it.

“We’ve got no target. We’re not even trying.”

Peterson said he would continue to be the “canary in the coalmine” for climate change.

He said he had pledged to wear his distinctive yellow shirt as a reminder.

-NZLDR

Emily Ireland
Emily Ireland
Emily Ireland is Wairarapa’s Local Democracy Reporter, a Public Interest Journalism role funded through NZ On Air. Emily has worked at the Wairarapa Times-Age for seven years and has a keen interest in council decision-making and transparency.

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