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Mukhtar Babayev is COP29 President and Azerbaijan’s Minister of Ecology and Natural Resources.

It has been a noisy few months since the COP29 climate summit in Baku. Unpredictability, volatility, distraction and confusion are all enemies of focused and sustained climate action.  

Committed climate actors face a challenge: how do we keep the world focused on the need for action and investment amidst competing demands on attention and resources? The answer – concentrate on concrete steps that we can take now. 

People may disparage the process of multilateral diplomacy. It is an easy target. But in such difficult times, it proves its worth.

Its norms and its frameworks for collective action provide much-needed anchors to help us weather the storms. Its North Stars – or Southern Crosses for our southern hemisphere friends – allow us to focus the constructive energies of committed climate actors as we navigate uncharted waters.

Brazil calls on local groups to “inspire” governments in boosting climate action

Even without everyone on board the ship, the process makes sure we keep moving forward. In this light, the outcomes of COP29 demonstrate that multilateralism can prevail, even in the face of persistent challenges and uncertainties.

It also provides us with a tapestry of promises that we must fulfill. Stitched together over time, they form a patchwork roadmap.  

Goal to triple UN climate fund outflows

At COP26, governments pledged to double adaptation finance by this year. In Baku, we collectively committed to tripling the outflows from official UNFCCC funds by 2030 before we ultimately mobilise the full Baku Finance Goal of $300 billion per year by 2035.

These milestones matter. They help us measure progress. They give us a reference point so we can stay on course.

Small Island States and the Least Developed Countries put the 2030 target for official UNFCCC funds on the agenda in Baku because these bodies know how to help the most vulnerable and they are answerable to them. Organisations such as the Green Climate Fund (GCF) are focused on achieving the most positive climate impacts and making sure finance is accessible to those who need it.

Green Climate Fund looks at capital-market borrowing to meet COP29 goal

Unfortunately, we know that a promise made is not always a promise kept. We recognise that work is needed to hold everyone to account for their pledges and keep them focused. Political will needs to be maintained. Financial commitment needs to be fought for every step of the way.

The Copenhagen ministerial meetings last week were an essential touchpoint. We heard again from Small Island States and the Least Developed Countries about the importance of the official funds such as the GCF, the Adaptation Fund, and the Fund for Responding to Loss and Damage.

Getting finance ministers onboard

Others may be distracted, but these countries – some of whom are literally facing climate extinction – remember these critical promises. They remember how every country agreed to them, and they are insistent that collectively they must be delivered.  

The overarching Baku Finance Goal was Azerbaijan’s top negotiating priority for COP29, and we will remain active to make sure that it is delivered.

The different funds have different replenishment cycles, but if the outflows are to triple in the next five years, then we clearly need to plan and set aside the capital now. One message from Copenhagen was clear: while we are sustaining the attention and commitment of climate ministers, full delivery will require the full attention of finance ministers.

Finance ministers will play a critical role in meeting our past promises, from tripling the outflows of the official UNFCCC funds by 2030 to helping reform the global financial architecture and facilitate flows of pledged funds in Baku by 2035.

Climate shocks and volatile currencies hike debt burden for poor countries

As COP29 President, Azerbaijan is working with the incoming Brazilian COP30 Presidency on novel ways to mobilise all stakeholders under their vision of a global “mutirão” – where a community comes together and each offers their best to solve a collective challenge.

In Copenhagen we delivered a clear message to ministers responsible for climate action that they need to take ownership of lobbying their colleagues, their bosses and their banks to participate.

They need to help pull finance ministers into our process at the same time as we go to theirs. They come to climate ministerial forums – we go to financial meetings.

And we turn up the noise. We let everyone know that new global challenges and priorities may be important, but they won’t distract us from the essential work of protecting our future.

The post Let’s use early milestones to stay focused on climate action  appeared first on Climate Home News.

Let’s use early milestones to stay focused on climate action 

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Q&A: Does the world need ‘carbon capture and storage’ to reach net-zero?

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When carbon dioxide (CO2) is released from a factory or power plant, the gas can be captured and permanently stored underground, preventing it from driving climate change.

This is the idea underpinning carbon capture and storage (CCS), a technology that is at the heart of many nations’ net-zero plans.

Influential organisations, including the Intergovernmental Panel on Climate Change (IPCC), describe CCS as “critical” for cutting emissions from key sectors – and for helping to avoid dangerous global warming.

In particular, capturing CO2 is seen as one of the only viable options for decarbonising some of the world’s highest-emitting industries, such as cement production.

The UK, for example, has committed to investing as much as £21.7bn over the coming decades in its nascent CCS industry, as part of the nation’s net-zero strategy.

Yet, in the UK and elsewhere, there has been a backlash against plans for CCS.

Citing high costs, ties to the fossil-fuel industry and a “history of poor performance”, critics describe CCS as a “dangerous distraction” or a “false climate solution”.

Time and again, the outlook for the roll-out of CCS has been scaled back, as the technology has failed to deliver as quickly as expected – and as policy support has wavered.

Furthermore, critics state that the technology remains “unproven” on the scale required to make a meaningful impact on global emissions.

In this Q&A, Carbon Brief explores the role CCS is expected to play in achieving net-zero, its record to date and the reasons it has been criticised, using the UK as an example.

Article Contents

What is CCS?

CCS involves capturing CO2 emissions released from a large source, such as a gas power plant or a cement factory.

The CO2 is separated from the facility’s exhaust stream, generally using a chemical solvent, before being compressed into a liquid and transported via pipeline or vehicle. The CO2 is then stored by injecting it into underground reservoirs, such as depleted oil fields or saline aquifers.

The term “CCUS” is sometimes also used, referring to the “utilisation” of CO2 to make products, including fertilisers, fuels or building materials. Such uses do not necessarily lead to permanent emissions cuts, as the CO2 can end up later being released back into the atmosphere.

(“CCS” is used in this Q&A, unless quoting another organisation that specifically refers to “CCUS”.)

The infographic below shows the stages of capturing CO2 and transporting it to be either stored or used in other applications.

Infographic showing the stages of capturing, transporting and then storing or using CO2.
Infographic adapted by Carbon Brief from the IEA.

Carbon capture technology was originally rolled out at US and Canadian oil wells in the early 1970s as a way to achieve “enhanced oil recovery”. This involves injecting captured CO2 into depleted wells – a process that stores CO2, but also helps to extract more oil.

This remains, by far, the most significant end use for captured CO2 worldwide, with around three-quarters of it used for this purpose.

Moreover, most of the CO2 currently captured is a by-product of gas purification – the process by which fossil fuels such as methane are separated from other, unwanted substances. Selling this CO2 can make such gas projects more economically viable.

Therefore, as shown in the chart below, which is based on International Energy Agency (IEA) data, the majority of CO2 that is both captured and used today helps the fossil-fuel industry to extract and sell more oil and gas.

CO2 captured, million tonnes per year, by sector and end use as of February 2026. Most CO2 is currently captured by the fossil-fuel industry – and then used to extract more fossil fuels. Fossil fuel processing produces ~49 of 62 Mt total, while enhanced oil recovery uses ~45 Mt. Source: IEA CCUS Projects database.

CCS was first proposed as a way to deal with CO2 emissions in a 1976 academic article, which imagined injecting the captured gas into the ocean.

It is only since the early 2000s that CCS has gained traction as a proposed climate solution, with a 2005 “special report” by the IPCC exploring the topic. At that time, the authors note there were just three small-scale projects trying to capture and permanently store CO2.

Installing CCS at factories or power plants and permanently storing the CO2 would mean that, in theory, such facilities could continue using fossil fuels without contributing to climate change.

Such applications are often mentioned alongside two related technologies, both of which could be used to “suck” CO2 out of the atmosphere and, thus, deliver “negative emissions”.

One is bioenergy with carbon capture and storage (BECCS). Crops absorb CO2 as they grow and BECCS involves a power plant burning these crops, then storing the resulting CO2.

The other technology is direct air carbon capture and storage (DACCS).

These technologies are classed as “CO2 removal”, as they involve absorbing CO2 from the atmosphere using plants or machines and then storing it permanently.

By contrast, CCS installed at a factory is considered a way to avoid CO2 emitted by that specific facility from entering the atmosphere. This Q&A focuses on such applications, which account for the vast majority of existing and planned CCS.

Extract from study by Marchetti, C. (1977), saying: The problem of CO2 control in the atmosphere is tackled by proposing a kind of ‘fuel cycle’ for fossil fuels where CO2 is partially or totally collected at certain transformation points and properly disposed of. CO2 is disposed of by injection into suitable sinking thermohaline currents that carry and spread it into the deep ocean that has a very large equilibrium capacity. The Mediterranean undercurrent entering the Atlantic at Gibraltar has been identified as one such current; it would have sufficient capacity to deal with all CO2 produced in Europe even in the year 2100.
First mention in the academic literature of capturing and storing CO2 for climate change mitigation. Source: Marchetti, C. (1977).

How much CCS capacity has been built so far?

As of February 2026, there were a total of 75 operational CCS projects around the world. As noted above, almost all of them are at fossil-fuel extraction and processing sites, according to the IEA’s database.

Together, these projects capture 62.5m tonnes of CO2 (MtCO2) each year. This is equivalent to the annual greenhouse gas emissions of Ecuador.

(This compares with the 22 CCS projects, promising to capture 40MtCO2 annually, that were operational or under construction as of 2014.)

As the chart below shows, the amount of CO2 currently being captured and stored is a tiny fraction of the total emissions from fossil-fuel use.

Annual global CO2 emissions from fossil fuels, compared to amount captured and stored. A square chart visually compares total fossil CO2 at 38.1bn to a tiny 0.06bn captured and stored. CCS projects currently capture less than 0.2% of the world's fossil-fuel emissions. Source: IEA, Global Carbon Budget.
“CO2 captured and stored” includes all projects that capture CO2 and use it for enhanced oil recovery, store it permanently underground or use it “with significant climate benefits”, according to the IEA.

In a 2020 report, the IEA explained that the “story of CCUS has largely been one of unmet expectations: its potential to mitigate climate change has been recognised for decades, but deployment has been slow”.

A wave of interest in CCS in the 2000s, largely from countries in Europe and North America, focused on enabling coal power plants to continue operating with lower emissions.

This interest largely petered out, as plummeting renewable energy costs weakened the case for coal plants with CCS. Today, there are only seven operating CCS-coal plants worldwide – five in China, one in the US and one in Canada.

Yet the Paris Agreement in 2015 – and the national net-zero targets that followed – highlighted the need for deep emissions cuts in sectors that previously expected to continue emitting for decades. This, once again, has fuelled interest in the use of CCS.

In recent years, there has also been growing interest in producing low-carbon “blue” hydrogen from gas with CCS.

Hydrogen is widely seen as key for decarbonising certain sectors – particularly in industry – but analyses suggest that it may be difficult to make sufficient “green” hydrogen using renewable power on the timescales required.

As the map below shows, most CCS capacity is based in the US and Canada, with other major fossil-fuel producers such as Norway, Brazil and the Gulf states also contributing.

World map showing CCS facilities are currently concentrated in oil-and-gas producing nations. The US has the highest capacity at 26.8 MtCO2, followed by Brazil (14.2), Canada (10), and China (7). Source: IEA.
Projects listed in the IEA CCUS database as split between two countries are divided equally between them. This includes projects that only store CO2, but it excludes projects that only transport CO2. DACCS projects are excluded.

A surge of projects have entered the global CCS pipeline in recent years. According to the IEA, 93.7MtCO2 of capture or storage capacity is under construction as of February 2026 and another 1,279.6MtCO2 is in the “planning” stages.

“Planned” projects include any initiative at early concept, feasibility or engineering study stages and the industry has a long history of projects being cancelled or delayed.

Nevertheless, this pipeline of projects could lead to a large expansion of facilities dedicated to permanent CO2 storage that does not involve extracting more oil.

The planned projects – if they are realised – would also include significant growth in sectors where CCS is virtually non-existent, such as steel, hydrogen and cement production, as shown in the chart below.

Global CCS capacity in different sectors, MtCO2, with projects planned for operation by 2030. Planned capacity dominates across all sectors, led by CO2 storage at nearly 400 MtCO2. CCS capacity would see significant growth if 'planned' projects go ahead. Source: IEA
A project is considered “under construction” by the IEA if a final investment decision has been announced and construction is on-going or imminent. A project is considered “planned” if it is at concept, feasibility or engineering study stage.

What role is CCS expected to play in reaching net-zero?

It will be impossible to stop dangerous climate change unless the world reaches net-zero emissions, according to the IPCC. The amount of global warming – and whether the Paris Agreement temperature target can be met – depends on when net-zero is reached.

Many global pathways that have been set out for achieving net-zero, including a majority of the IPCC-assessed pathways where global warming is limited to 1.5C, rely on the use of CCS at fossil-fuel plants and industrial sites.

“These models have been quite instrumental in bringing CCS back onto the agenda,” Lina Lefstad, an ecological economist at Lund University, tells Carbon Brief.

Influential organisations relying on CCS in their net-zero scenarios range from the International Renewable Energy Agency (IRENA) through to the oil company Shell. The IEA has stated that net-zero would be “virtually impossible” without CCS.

These scenarios often include 10s to 100s of times more CCS capacity being built in the coming decades. The IEA includes 1.7GtCO2 being captured by 2035 in its net-zero scenario – nearly 30 times more than is captured today.

(Some of the much higher numbers in scenarios assessed by the IPCC have been dismissed by experts as implausible, especially given the slow rollout of CCS to date.)

When considering CCS for both emissions cuts and removals, Dr Jennifer Roberts, a researcher at the University of Strathclyde and deputy director at the UK Carbon Capture and Storage Research Centre (UKCCSRC), tells Carbon Brief the situation is clear:

“From an IPCC climate modelling perspective…reaching net-zero without CCS is far more expensive, disruptive and potentially out of reach.”

This does not mean that it would be impossible to reach net-zero without using CCS. However, net-zero scenarios that use little or no CCS rely on dramatic changes elsewhere, such as much lower global energy demand.

Net-zero scenarios often include a crucial role for CCS in “hard-to-abate” sectors, referring to activities that lack available, low-cost options to fully decarbonise. In particular, CCS is widely seen as vital for decarbonising parts of heavy industry.

The IPCC sixth assessment report (AR6) summary for policymakers calls CCS a “critical mitigation option” for some sectors, including cement and chemicals. The technical summary of the AR6 Working Group III report says that “CCS will be required to mitigate remaining CO2” in industrial sectors.

The IEA describes CCS as “virtually the only technology” that can significantly cut cement emissions, which account for around 7% of the global total. (Much of this CO2 comes from chemical processes, meaning it would still be released if the industry was electrified.)

Yet, the understanding of “hard-to-abate” emissions is changing, as alternatives to CCS become cheaper and increasingly available. As a result, CCS has become a less attractive option in some sectors, as well as being seen as less vital in some others.

Carbon Brief analysis shows that the IEA has reduced its outlook for CCS in the power sector by a third, compared to its expectations in 2021, as the chart below shows.

This reflects both slow progress in deploying CCS and rapid cost reductions in renewables, which make running gas or coal power plants less attractive.

Projected global capacity of coal and gas power plants with CCS, GW, in IEA net-zero scenarios from 2021 through to 2025. Following years of very slow growth, the IEA has significantly scaled back its outlook for CCS in the power sector. Projected 2050 capacity drops from ~400 GW in the 2021 scenario to ~240 GW in the 2025 scenario. Source: IEA
Data comes from IEA world energy outlooks between 2021-2025.

(Even prior to this adjustment, the IEA’s net-zero scenario was already at the lower end of CCS use, compared to those assessed by the IPCC.)

This declining role for CCS in the power sector would mean its use is more concentrated in industry.

Industrial sectors – particularly cement, steel and chemicals – account for 60% of the CO2 captured in 2050 under the IEA’s net-zero scenario, as shown in the figure below. The remaining 40% is roughly split between electricity generation and blue hydrogen production.

Climate NGOs Bellona and E3G have stressed that with “limited public funding, infrastructure constraints and political attention, prioritisation is essential” for CCS. Their “CCS ladder” places CCS in cement and lime production at the top – with the highest “climate value” – while power CCS has “low and decreasing value”.

Despite this, the focus of the CCS sector so far has not been in heavy industry, which represents less than 10% of announced capacity.

Chart showing the sectoral breakdown of CCS captured annual in the IEA's net-zero scenario. It shows that most CO2 is captured and stored from cement, steel and other heavy industries in the scenario.

Another key consideration is the role governments are assigning to CCS in their national net-zero strategies.

One study found that 33 of the 67 long-term net-zero strategies submitted to the UN by governments, with a further 10 indicating some potential use.

It concluded that high-income countries that produce a lot of oil and gas, such as Canada and Norway, showed the “firmest commitment” to capturing and storing CO2.

Nations have agreed at UN climate talks to “phase