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mitigation

Carbon trading

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Author:

Kate Dooley, Senior Research Fellow, School of Geography, Earth and Atmospheric Sciences, The University of Melbourne

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Negotiators at the COP29 climate conference in Baku have struck a landmark agreement on rules governing the global trade of carbon credits, bringing to a close almost a decade of debate over the controversial scheme.

The deal paves the way for a system in which countries or companies buy credits for removing or reducing greenhouse gas emissions elsewhere in the world, then count the reductions as part of their own climate efforts.

Some have argued the agreement provides crucial certainty to countries and companies trying to reach net-zero through carbon trading, and will harness billions of dollars for environmental projects.

However, the rules contain several serious flaws that years of debate have failed to fix. It means the system may essentially give countries and companies permissions to keep polluting.

What is carbon offsetting?

Carbon trading is a system where countries, companies or other entities buy or sell “credits”, or permits, that allow the buyer to offset the greenhouse gas emissions they produce.

For example, an energy company in Australia that produces carbon emissions by burning coal may, in theory, offset their impact by buying credits from a company in Indonesia that removes carbon by planting trees.

Other carbon removal activities include renewable energy projects, and projects that retain vegetation rather than cutting it down.

Carbon trading was a controversial part of the global Paris climate deal clinched in 2015.

The relevant part of the deal is known as “Article 6”. It sets the rules for a global carbon market, supervised by the United Nations, which would be open to companies as well as countries. Article 6 also includes trade of carbon credits directly between countries, which has begun operating even while rules were still being finalised.

Rules for carbon trading are notoriously complex and difficult to negotiate. But they are important to ensure a scheme reduces greenhouse gas emissions in reality, not just on paper.

A long history of debate

Over the past few years, annual COP meetings made some progress on advancing the carbon trading rules.

For example, COP26 in Glasgow, held in 2021, established an independent supervisory body. It was also tasked with other responsibilities such as recommending standards for carbon removal and methods to guide the issuing, reporting and monitoring of carbon credits.

But the recommendations were rejected at COP meetings in 2022 and 2023 because many countries viewed them as weak and lacking a scientific basis.

At a meeting in October this year, the supervisory body published its recommendations as “internal standards” and so bypassed the COP approval process.

At this year’s COP in Baku, the Azerbaijani hosts rushed through adoption of the standards on day one, prompting claims proper process had not been followed

For the remaining two weeks of the conference, negotiators worked to further develop the rules. A final decision was adopted over the weekend, but has attracted criticism.

For example, the Climate Land Ambition and Rights Alliance says the rules risk “double counting” – which means two carbon credits are issued for only one unit of emissions reduction. It also claims the rules fail to prevent harm to communities – which can occur when, say, Indigenous Peoples are prevented from accessing land where tree-planting or other carbon-storage projects are occurring.

Getting to grips with carbon removal

The new agreement, known formally as the Paris Agreement Trading Mechanism, is fraught with other problems. Most obvious is the detail around carbon removals.

Take, for example, the earlier scenario of a coal-burning company in Australia offsetting emissions by buying credits from a tree-planting company in Indonesia. For the climate to benefit, the carbon stored in the trees should remain there as long as the emissions produced from the company’s burning of coal remains in the atmosphere.

But, carbon storage in soils and forests is considered temporary. To be considered permanent, carbon must be stored geologically (injected into underground rock formations).

The final rules agreed to at Baku, however, fail to stipulate the time periods or minimum standards for “durable” carbon storage.

Temporary carbon removal into land and forests should not be used to offset fossil fuel emissions, which stay in the atmosphere for millennia. Yet governments are already over-relying on such methods to achieve their Paris commitments. The weak new rules only exacerbate this problem.

To make matters worse, in 2023, almost no carbon was absorbed by Earth’s forests or soils, because the warming climate increased the intensity of drought and wildfires.

This trend raises questions about schemes that depend on these natural systems to capture and store carbon.

Temporary carbon removal into land and forests should not be used to offset fossil fuel emissions.
Temporary carbon removal into land and forests should not be used to offset fossil fuel emissions.

What next?

Countries already can, and do, trade carbon credits under the Paris Agreement. Centralised trading will occur under the new scheme once the United Nations sets up a registry, expected next year.

Under the new scheme, Australia should rule out buying credits for land-based offsets (such as in forests and soil) to compensate for long-lasting emissions from the energy and industry sectors.

Australia should also revise its national carbon trading scheme along the same lines.

We could also set a precedent by establishing a framework that treats carbon removals as a complement — not a substitute — for emissions reduction.The Conversation

Carbon trading

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This 05 August webinar shares information about the Climate Change Commission’s first annual emissions reduction monitoring report, released in July 2024. The report provides an evidence-based, impartial view of whether the country is on course to reach its goals of reducing and removing greenhouse gas emissions. It provides insight into the progress made, challenges experienced, and opportunities and risks that need to be considered.

The following quote from Dr Rod Carr towards the end of the webinar, paints a realistic picture of what Aotearoa can expect in term of the economic our global standing and the risks. (Pages on this website explain Nationally Determined Contributions, the Paris Accord, and the Emissions Trading Scheme.)

Webinar question: What would happen if New Zealand wasn’t able or didn’t comply with our Nationally Determined Contributions (NDCs)? What are the implications for us?

Answers:

As time it goes on, meeting our NDCs is getting increasingly more difficult and expensive because of delay. 

Not meeting the NDCs: we would certainly expect to see greater scrutiny of our actions from our trading partners particularly where we have free trade agreements (FTAs) and particularly with those strong climate elements within them like the EU FTA. 

Not meeting them is also likely to come with a loss of influence and on the global scale in relation to climate change, which may mean we are in worse position to advocate for a response that takes into account our national circumstances. 

The final thing is that global consumers and customers are increasingly scrutinising their supply chains and looking for products that are reducing emissions, and so we do increase risks around loss of the global markets.

– Jo Hendy CE:  Video, The Climate Change Commission 2024 emissions reduction monitoring report, August 2024

When the rest of the world looks at New Zealand, if we haven’t met our national determine contributions—we won’t know on the 31st of December 2030 as it takes a couple of years for inventories and count up— but when the partners that we care about look at our behaviour and go, ‘Did you do all that you said you would? Did you do all that you said you would? And did you do all the things you could have done?’ That’s going to inform whether it’s ‘that you tried hard but missed’ or ‘you didn’t try’.

So foreign countries who are in incurring very real economic costs to reduce their emissions today— and that includes the Europeans, the Brits, and the Americans (there’s half a trillion U.S. dollars of taxpayers money being made available to reduce their emissions so the idea they’re not doing anything; that’s just wrong)—so when those countries look at NZ in the early 2030s and they look back to 2020, they go, ‘Well you could have made a better effort to, for example, decarbonized ground transport there were known technologies that were available, but you just chose to buy cheap high polluting cars. You could have chosen to stop burning as much coal and fossil gas to make electricity by investing more sooner in renewables, but you chose not to.’ I think that’s going to influence what the world thinks about New Zealand ‘s behaviour more than whether we did or did hit the exact number of tonnes for this decade.

And the rest of the world looks at New Zealand and says, ‘You didn’t try. You didn’t take up the known technologies. You are short sighted, selfish, and reckless in your use of the climate for profit.’ I think their attitudes to us will be very different than if we had tried hard and done all we could but things didn’t turn out well. 

– Dr Rod Carr, Video, The Climate Change Commission 2024 emissions reduction monitoring report, August 2024

New Zealand is one of the worst countries in the world in terms of meeting its commitments to keep temperatures under 1.5C. (Image: Climate Action Tracker)
New Zealand is one of the worst countries in the world in terms of meeting its commitments to keep temperatures under 1.5C. (Image: Climate Action Tracker)
New Zealand is also subsidising high greenhouse gas emissions industries by giving the agricultural sector a 100% discount (Image: Nature journal)
New Zealand is also subsidising high greenhouse gas emissions industries by giving the agricultural sector a 100% discount (Image: Nature journal)
co2 drawdown

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Authors:

Volker Sick, Professor of Advanced Energy Research, Director of the Global CO2 Initiative, University of Michigan

Fred Mason, Gerry Stokes, Susan Fancy and Stephen McCord of the Global CO₂ Initiative contributed to this article.The Conversation

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Producing concrete blocks with captured carbon has both economic and climate benefits.



Capturing carbon dioxide from the air or industries and recycling it can sound like a win-win climate solution. The greenhouse gas stays out of the atmosphere where it can warm the planet, and it avoids the use of more fossil fuels.

But not all carbon-capture projects offer the same economic and environmental benefits. In fact, some can actually worsen climate change.

I lead the Global CO₂ Initiative at the University of Michigan, where my colleagues and I study how to put captured carbon dioxide (CO₂) to use in ways that help protect the climate. To help figure out which projects will pay off and make these choices easier, we mapped out the pros and cons of the most common carbon sources and uses.


Replacing fossil fuels with captured carbon

Carbon plays a crucial role in many parts of our lives. Materials such as fertilizer, aviation fuel, textiles, detergents and much more depend on it. But years of research and the climate changes the world is already experiencing have made abundantly clear that humanity needs to urgently end the use of fossil fuels and remove the excess CO₂ from the atmosphere and oceans that have resulted from their use.

An illustration of a landscape shows how greenhouse gases and released, captured and stored in various ways, including oceans, land, forests and human activtiies.
Balancing the environmental carbon budget is complex, and active carbon management is necessary to stabilize the climate. University of Michigan, CC BY-ND


Some carbon materials can be replaced with carbon-free alternatives, such as using renewable energy to produce electricity. However, for other uses, such as aviation fuel or plastics, carbon will be harder to replace. For these, technologies are being developed to capture and recycle carbon.

Capturing excess CO₂ – from the oceans, atmosphere or industry – and using it for new purposes is called carbon capture, utilization and sequestration, or CCUS. Of all the options to handle captured CO₂, my colleagues and I favor using it to make products, but let’s examine all of them.


CCUS best and worst cases

With each method, the combination of the source of the CO₂ and its end use, or disposition, determines its environmental and economic consequences.

In the best cases, the process will leave less CO₂ in the environment than before. A strong example of this is using captured CO₂ to produce construction materials, such as concrete. It seals away the captured carbon and creates a product that has economic value.

A few methods are carbon-neutral, meaning they add no new CO₂ to the environment. For example, when using CO₂ captured from the air or oceans and turning it into fuel or food, the carbon returns to the atmosphere, but the use of captured carbon avoids the need for new carbon from fossil fuels.

Other combinations, however, are harmful because they increase the amount of excess CO₂ in the environment. One of the most common underground storage methods – enhanced oil recovery – is a prime example.

Underground carbon storage pros and cons

Projects for years have been capturing excess CO₂ and storing it underground in natural structures of porous rock, such as deep saline reservoirs, basalt or depleted oil or gas wells. This is called carbon capture and sequestration (CCS). If done right, geologic storage can durably remove large amounts of CO₂ from the atmosphere.

When the CO₂ is captured from air, water or biomass, this creates a carbon-negative process – less carbon is in the air afterward. However, if the CO₂ instead comes from new fossil fuel emissions, such as from a coal- or gas-fired power plant, carbon neutrality isn’t possible. No carbon-capture technology works at 100% efficiency, and some CO₂ will always escape into the air.

Capturing CO₂ is also expensive. If there is no product to sell, underground storage can become a costly service ultimately covered by taxes or fees, similar to paying for trash disposal.



One way to lower the cost is to sell the captured CO₂ for enhanced oil recovery – a common practice that pumps captured CO₂ into oil fields to push more oil out of the ground. While most of the CO₂ is expected to stay underground, the result is more fossil fuels that will eventually send more carbon dioxide into the atmosphere, eliminating the environmental benefit.

Using captured carbon for food and fuel

Short-lived materials made from CO₂ include aviation fuels, food, drugs and working fluids used in machining metals. These items aren’t particularly durable and will soon decompose, releasing CO₂ again. But the sale of the products yields economic value, helping pay for the process.

This CO₂ can be captured from the air again and used to make a future generation of products, which would create a sustainable, essentially circular carbon economy. However, this only works if the CO₂ is captured from the air or oceans. If the CO₂ comes from fossil fuel sources instead, this is new CO₂ that will be added to the environment when the products decompose. So even if it is captured again, it will worsen climate change.

Storing carbon in materials, such as concrete

Some minerals and waste materials can convert CO₂ to limestone or other rock materials. The long-lived materials created this way can be very durable, with lifetimes of longer than 100 years

A good example is concrete. CO₂ can react with particles in concrete, causing it to mineralize into solid form. The result is a useful product that can be sold instead of being stored underground. Other durable products include aggregates used in road construction, carbon fiber used in automotive, aerospace and defense ]applications and some polymers.

Volker Sick, director of the Global CO₂ Initiative at the University of Michigan and author of this article, discusses why carbon capture and its use has been slow to gain attention.

These materials provide the best combination of environmental impact and economic benefit when they are made with CO₂ captured from the atmosphere rather than new fossil fuel emissions.


Choose your carbon projects wisely

CCUS can be a useful solution, and governments have started pouring billions of dollars into its development. It must be closely monitored to ensure that carbon-capture technologies will not delay fossil fuel phaseout. It is an all-hands-on-deck effort to take the best combinations of CO₂ sources and disposition to achieve rapid scaling at an affordable cost to society.

Because climate change is such a complex problem that is harming people throughout the world, as well as future generations, I believe it is imperative that actions are not only fast, but also well thought out and based in evidence.

Authors:

Fred Mason, Gerry Stokes, Susan Fancy and Stephen McCord of the Global CO₂ Initiative contributed to this article.The Conversation

Volker Sick, Professor of Advanced Energy Research, Director of the Global CO2 Initiative, University of Michigan

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Carbon trading

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From The Guardian: read the full article by Nina Lakhani
 
“The Guardian and researchers from Corporate Accountability, a non-profit, transnational corporate watchdog, analysed the top 50 emission offset projects, those that have sold the most carbon credits in the global market.”According to our criteria and classification system:

  • A total of 39 of the top 50 emission offset projects, or 78% of them, were categorised as likely junk or worthless due to one or more fundamental failing that undermines its promised emission cuts.
  • Eight others (16%) look problematic, with evidence suggesting they may have at least one fundamental failing and are potentially junk, according to the classification system applied.
  • The efficacy of the remaining three projects (6%) could not be determined definitively as there was insufficient public, independent information to adequately assess the quality of the credits and/or accuracy of their claimed climate benefits.

“Overall, $1.16bn (£937m) of carbon credits have been traded so far from the projects classified by the investigation as likely junk or worthless; a further $400m of credits bought and sold were potentially junk.” – keep reading

Infographic: How are carbon offsets supposed to work?

Carbon Brief have also released a detailed analysis and mapping, including carbon credits claims made by New Zealand companies:
 
Carbon Brief's infographic: carbon offset claims
Carbon Brief’s infographic: carbon offset claims

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We can’t just sit around and wait to see what will happen next. We need positive action.

I’ve read a lot of Climate Adaptation Plans and Strategies over the past the last few years, but He Toka Tū Moana Mō Maketū (Maketū Climate Change Adaptation Plan) is hand-down the best. It’s clearly laid out, outlines the community’s priorities, and can readily serve as a template to help every community around Aoteara develop their own Climate Adaptation Plans. Most important of all:

It’s iwi led, community driven, it’s a plan that’s been decided by those who live here. –  Elva Conroy, Kaitohotohu / Facilitator (Video; to listen Watch on Youtube)

Winner of the 2023 Supreme Planning Awards, the Maketū Climate Change Adaptation Plan was developed by Ngāti Pikiao Environmental Society, Te Rūnanga o Ngāti Whakaue ki Maketū , Whakaue Marae Trustees, and Conroy and Donald Consultants.

In the words of the Maketu Iwi Collective, ‘we will be resilient like the anchor stone Takaparore – strong and steadfast against the elements and tides of change and uncertainty. Regardless of what happens as a result of a changing environment, we will remain standing’. – New Zealand Planning Institute, April 2023.

wildfire

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By: Professor of Energy and Climate Change, University of Manchester. Republished in full from The Conversation under a Creative Commons license. See the original article: March 25, 2023

The Intergovernmental Panel on Climate Change’s (IPCC) synthesis report recently landed with an authoritative thump, giving voice to hundreds of scientists endeavouring to understand the unfolding calamity of global heating. What’s changed since the last one in 2014? Well, we’ve dumped an additional third of a trillion tonnes of CO₂ into the atmosphere, primarily from burning fossil fuels. While world leaders promised to cut global emissions, they have presided over a 5% rise.

The new report evokes a mild sense of urgency, calling on governments to mobilise finance to accelerate the uptake of green technology. But its conclusions are far removed from a direct interpretation of the IPCC’s own carbon budgets (the total amount of CO₂ scientists estimate can be put into the atmosphere for a given temperature rise).

The report claims that, to maintain a 50:50 chance of warming not exceeding 1.5°C above pre-industrial levels, CO₂ emissions must be cut to “net-zero” by the “early 2050s”. Yet, updating the IPCC’s estimate of the 1.5°C carbon budget, from 2020 to 2023, and then drawing a straight line down from today’s total emissions to the point where all carbon emissions must cease, and without exceeding this budget, gives a zero CO₂ date of 2040.

Graph with lines
 A full description of the above chart is available here.
 
If emissions stay at their current levels, we will exhaust the 50% chance of 1.5°C in 9 years. If we begin to immediately cut emissions following the blue line, then to stay within the carbon budget for 50:50 chance of not exceeding 1.5°C we need zero global emissions by 2040. The vertical axis represents how much carbon is emitted each year – note the pandemic-related blip in 2020.
 

Given it will take a few years to organise the necessary political structures and technical deployment, the date for eliminating all CO₂ emissions to remain within 1.5°C of warming comes closer still, to around the mid-2030s. This is a strikingly different level of urgency to that evoked by the IPCC’s “early 2050s”. Similar smoke and mirrors lie behind the “early 2070s” timeline the IPCC conjures for limiting global heating to 2°C.

IPCC science embeds colonial attitudes

For over two decades, the IPCC’s work on cutting emissions (what experts call “mitigation”) has been dominated by a particular group of modellers who use huge computer models to simulate what may happen to emissions under different assumptions, primarily related to price and technology. I’ve raised concerns before about how this select cadre, almost entirely based in wealthy, high-emitting nations, has undermined the necessary scale of emission reductions.

In 2023, I can no longer tiptoe around the sensibilities of those overseeing this bias. In my view, they have been as damaging to the agenda of cutting emissions as Exxon was in misleading the public about climate science. The IPCC’s mitigation report in 2022 did include a chapter on “demand, services and social aspects” as a repository for alternative voices, but these were reduced to an inaudible whisper in the latest report’s influential summary for policymakers.

The specialist modelling groups (referred to as Integrated Assessment Modelling, or IAMs) have successfully crowded out competing voices, reducing the task of mitigation to price-induced shifts in technology – some of the most important of which, like so-called “negative emissions technologies”, are barely out of the laboratory.

The IPCC offers many “scenarios” of future low-carbon energy systems and how we might get there from here. But as the work of academic Tejal Kanitkar and others has made clear, not only do these scenarios prefer speculative technology tomorrow over deeply challenging policies today (effectively a greenwashed business-as-usual), they also systematically embed colonial attitudes towards “developing nations”.

With few if any exceptions, they maintain current levels of inequality between developed and developing nations, with several scenarios actually increasing the levels of inequality. Granted, many IAM modellers strive to work objectively, but they do so within deeply subjective boundaries established and preserved by those leading such groups.

Four people in formal attire converse on a stage behind a
March 2023’s synthesis report capped eight years of research. IISD/ENB/Anastasia Rodopoulou

 

What happened to equity?

If we step outside the rarefied realm of IAM scenarios that leading climate scientist Johan Rockström describes as “academic gymnastics that have nothing to do with reality”, it’s clear that not exceeding 1.5°C or 2°C will require fundamental changes to most facets of modern life.

Starting now, to not exceed 1.5°C of warming requires 11% year-on-year cuts in emissions, falling to nearer 5% for 2°C. However, these global average rates ignore the core concept of equity, central to all UN climate negotiations, which gives “developing country parties” a little longer to decarbonise.

Include equity and most “developed” nations need to reach zero CO₂ emissions between 2030 and 2035, with developing nations following suit up to a decade later. Any delay will shrink these timelines still further.

Most IAM models ignore and often even exacerbate the obscene inequality in energy use and emissions, both within nations and between individuals. As the International Energy Agency recently reported, the top 10% of emitters accounted for nearly half of global CO₂ emissions from energy use in 2021, compared with 0.2% for the bottom 10%. More disturbingly, the greenhouse gas emissions of the top 1% are 1.5 times those of the bottom half of the world’s population.

So where does this leave us? In wealthier nations, any hope of arresting global heating at 1.5 or 2°C demands a technical revolution on the scale of the post-war Marshall Plan. Rather than relying on technologies such as direct air capture of CO₂ to mature in the near future, countries like the UK must rapidly deploy tried-and-tested technologies.

Retrofit housing stock, shift from mass ownership of combustion-engine cars to expanded zero-carbon public transport, electrify industries, build new homes to Passivhaus standard, roll-out a zero-carbon energy supply and, crucially, phase out fossil fuel production.

Three decades of complacency has meant technology on its own cannot now cut emissions fast enough. A second, accompanying phase, must be the rapid reduction of energy and material consumption.

Given deep inequalities, this, and deploying zero-carbon infrastructure, is only possible by re-allocating society’s productive capacity away from enabling the private luxury of a few and austerity for everyone else, and towards wider public prosperity and private sufficiency.

For most people, tackling climate change will bring multiple benefits, from affordable housing to secure employment. But for those few of us who have disproportionately benefited from the status quo, it means a profound reduction in how much energy we use and stuff we accumulate.

The question now is, will we high-consuming few make (voluntarily or by force) the fundamental changes needed for decarbonisation in a timely and organised manner? Or will we fight to maintain our privileges and let the rapidly changing climate do it, chaotically and brutally, for us?

Healthy native dune system with wetlands

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Top image: healthy coastal wetlands

The Environmental Defence Society has filed its submission on the Ministry for the Environment’s regulations on coastal wetlands and says that the Ministry’s approach undermines the original intent of the regulations and leaves coastal wetlands vulnerable to future degradation.

This is a classic case of maladaptation, the exact opposite to adaptation that the Government itself warned against in its National adaptation plan.

“The Resource Management (National Environmental Standards for Freshwater) Regulations 2020 (NES-F) set national direction to protect and improve wetlands and put a stop to further loss of their values”, said EDS COO Shay Schlaepfer.

“The NES-F was clearly intended to apply to both inland and coastal wetlands. The Ministry is now proposing a policy U-turn and wants to exclude coastal wetlands from the regulations.

“This approach is totally unjustified. Coastal wetlands are capable of being mapped so there is no reason why they should not be included. The NES-F is a rules framework that integrates national policy relating to wetlands and provides a consistent approach to wetland management across all domains.

“Removing coastal wetlands from the NES-F will leave a gap in their management and protection at the national level and leave too much discretion with regional councils.

“The Ministry also seeks to exempt certain activities from the consenting pathways set out in the NES-F. These activities have the potential to adversely affect coastal wetlands and should be subject to the regulations.

“Wetlands are one of the country’s most valuable ecosystems. They have undergone extensive loss with over 90% of them destroyed since human occupation. Many of those that remain are in a severely degraded state. The Ministry’s proposed approach will only serve to further continue this decline.

“This cannot be allowed to occur and we urge the Ministry to think again,” Ms Schlaepfer concluded.

Climate justice
Climate justice

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“In a landmark decision, a United Nations committee on Friday found Australia’s former Coalition government violated the human rights of Torres Strait Islanders by failing to adequately respond to the climate crisis.”

This decision sets a precedent that has direct implications for Aoteora. For the first time:

“Significantly, deep Indigenous cultural and ecological knowledge, rather than Western climate science, proved key to this UN decision. This marks a departure from broad international climate politics where Indigenous laws, cultures, knowledges and practices are often sidelined or underrepresented.”

“The Torres Strait Islanders ‘Group of Eight’ claimed Australia failed to take measures such as reducing greenhouse gas emissions and upgrading seawalls on the islands. The UN upheld the complaint and said the claimants should be compensated.

“This decision is a breakthrough in Indigenous rights and climate justice, including by opening up new pathways for Indigenous communities – who are often on the frontline of the climate crisis – to defend their rights.

“The Albanese government, which has stated its commitment to work with the Torres Strait on climate change, must now meet this moment of possibility and challenge.

“…The evidence was backed by findings from the latest Intergovernmental Panel on Climate Change report, which called for urgent action to protect the vulnerable region.

– Professor, Environment and Development Sociology, The University of Queensland

Read the full story in The Conversation, here.