Climate change: World aviation agrees ‘aspirational’ net zero planon October 7, 2022 at 3:59 pm

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UN member states pledge to decarbonise air travel, but green groups say the deal is weak and non-binding.

airlineImage source, Getty Images

The world has finally agreed on a long-term plan to curb carbon emissions from flying.

At a meeting in Montreal, the International Civil Aviation Authority (ICAO), pledged to support an “aspirational” net zero aviation goal by 2050.

The plan, seen as a compromise by many, was accepted by the 193 countries who are members of ICAO.

However green groups say the deal is weak and not legally binding.

When the world came together in Paris in 2015 to agree on a long-term plan to tackle climate change, two key industries were missing – aviation and shipping.

The airline industry contributes around 2.5% of global carbon emissions, but scientists believe it has a much higher impact on climate change than this figure suggests.

This is because of the multiple impacts of flying including the altitudes planes fly at and the effects of contrails – the water-vapour trails produced by engines.

US Special Presidential envoy on climate change, John Kerry, welcomed the deal.

In a tweet he said: “Thrilled to see international aviation commit at @icao 41st Assembly to a sustainable future with a long-term climate goal… to help put aviation on the path to net zero by 2050.”

air planes

Image source, Getty Images

With 193 member countries, ICAO is the UN body tasked with regulating the carbon footprint of air travel – they’ve been under increasing pressure from consumers and scientists to try to find ways to decarbonise air travel for several years, with limited success.

However at their triennial assembly in Montreal this week they finally agreed to support a net zero target for 2050, despite grumbles from China and Russia.

Environmentalists are concerned that this new plan is not binding, meaning the ICAO has no power to enforce the decision.

“You shouldn’t be fooled by the results of this assembly. This isn’t going to solve aviation’s problem,” said Jo Dardenne of campaign group Transport & Environment.

“The only way we’re going to solve it is to stop burning kerosene. The way that you stop burning kerosene is by pricing kerosene more effectively and investing in alternative solutions.”

At the meeting countries agreed that the best way of dealing with future emissions is through a system of carbon offsets.

Offsetting is a process where companies or individuals buy carbon credits from schemes such as forestry plantations to cancel out carbon emissions from activities like flying.


Image source, Getty Images

ICAO has now agreed that airlines will use the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA).

Under the scheme airlines would agree a baseline year and all future emissions above the level of that period would have to be offset.

Initially they had planned to use an average of flying emissions in 2019 and 2020 – but the onset of the Covid pandemic saw air transport decline rapidly.

While campaigners were delighted with the prospect of a low baseline that would have forced airlines to offset far more of their emissions, the industry baulked.

After discussions in Montreal the threshold has now been set as 85% of 2019 carbon emissions, allowing a higher level of carbon dioxide pollution before airlines must purchase offsets.


Image source, Getty Images

In previous analysis, campaigners found that CORSIA would add just €2.40 to the price of a long-haul flight in 2030 to offset passenger’s emissions.

They now say that the scheme agreed in Montreal will only cover 22% of future emissions in 2030.

Despite the serious deficiencies, some say the assembly’s decisions did provide some form of hope that airlines will now push ahead with more sustainable jet fuels.

“A goal is better than nothing but it is up to member states now to implement the proper regulations,” said Jo Dardenne.

“Once this target is there, even if it is non-binding, politically it still forces member states to be ambitious in their climate plans.”

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