Suppliers

The State of
Carbon Removals

We know that reducing carbon emissions is not enough. To limit global temperature increases to 1.5°C, we need to actively remove 5 to 10 gigatonnes of carbon from the air every year by 2050.

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Trusted by sustainability leaders

The data

Scaling up removals together

We know that reducing and removing carbon emissions today is not enough. We invest back into the ecosystem to help ensure there’s enough supply for all of us in 5, 10 and 25 years time.


Leading scientists agree that in order to stop climate change we need to be removing 10 billion tons of carbon dioxide each year by 2050. This is the space race of the 21st industry - we need to build this market faster than ever before. At CUR8, we’re on a mission to support the whole ecosystem to ensure there’s enough supply for all of us in 5, 10 and 25 years time.

422.19

parts per million of CO2 in the Atmosphere

+1.56° C

Increase in global temperature since 20th century

11,680,104

tonnes of CO2 purchased

+400

number of Carbon removal projects globally

Case study

Financing to Scale
Carbon Removal through

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Case study

Financing to Scale
Carbon Removal through

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Case study

Financing to Scale
Carbon Removal through

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Removal Type

Biochar

Biochar is a carbon-rich substance made by heating biomass in an oxygen-free environment, a process called pyrolysis. Biochar can be made from dedicated biomass grown for the purpose, or from sewage and food waste. 

Durability
Added to soil, a large percentage of biochar should last for hundreds to thousands of years (with high pyrolysis temperatures giving greater durability).

Length of storage
Decades, centuries, millennia 

Speed of drawdown
Immediate, 1-3 years, 3-5 years 

Co-benefits:
Trials have proved that it improves soil health and increases agricultural yields for many crop types. It can also improve air quality, and provide income for local communities. 

Biochar

Removal Type

Enhanced Rock Weathering

Enhanced Rock Weathering (ERW) accelerates the natural carbon-absorbing chemistry of silicate rocks. Grinding rocks such as basalt into fine fragments creates vastly more surface area for chemical reactions to take place.

Durability
ERW could be highly scalable. Depending on the minerals in the rocks, it can store a high percentage of carbon rapidly, in one to two years, or more slowly, over a couple of decades

Speed of drawdown
1-2 years, or a couple of decades

Co-benefits

Spread on agricultural land, the ground-up rock provides nutrients that can increase crop yields. It stores carbon in the form of stable carbonate minerals that will eventually be washed into rivers and the sea.

Enhanced Rock Weathering

Removal Type

Durable Soil Carbon

Soil carbon sequestration (SCS), or carbon farming, increases the ability of agricultural soils to hold carbon. Adding compost and manure and planting extra sets of crops, known as cover crops, can absorb extra CO2 across the year. Less tilling can help to trap that carbon in the soil. 

Durability
Durability may be low, as these practices must be constantly maintained to ensure that organic matter does not release its carbon store. However, durability can be increased to many centuries by adding microbes that mineralise some of the carbon.

Length of storage
Several years, centuries

Co-benefits & potential side effects
Soil carbon sequestration can improve the quality of soils, and raise agricultural yields.

Durable Soil Carbon

Removal Type

Biomass Burials

Biomass burial is a way to ally with plants to create more durable carbon storage in both land and sea. On land, burying wood can keep it safe from fire and rot, storing the CO2 rather than it being emitted. In the ocean, kelp or other algae can be buried in deep ocean sediments.

Durability
100+

Co-benefits
Biomass burial can provide safe storage for unused agriculture residue, river runoff and for forest ground biomass which helps eliminate water pollution and mitigate fire risk. 

Biomass Burials

Removal Type

Durable Trees

Afforestation, reforestation and revegetation (ARR) activities include planting trees and allowing vegetation to recolonise land. Afforestation is planting trees on land that has not been forested for several decades at least. Reforestation is restoring land that has been deforested more recently. Revegetation focuses on rebuilding damaged soils, either by deliberate planting and seeding, or by allowing natural recolonisation.

Durability
Decades to centuries.

Length of storage
Decades, centuries 

Co-benefits & potential side effects
A diverse array of native species is more resilient, stores more carbon, and brings greater co-benefits than a monoculture – with positive effects on biodiversity, water, soils and climate adaptation. 

Durable Trees

Removal Type

Direct Air Capture

Direct air carbon capture and storage (DACCS) chemically extracts CO2 from the air and stores it safely. The capture technology comes in many varieties, but most commonly uses a solvent to capture the CO2, then heat to extract the gas from the solvent.

Durability 
The concentrated CO2 can be pumped into deep geological reservoirs, such as depleted oil and gas fields or saline aquifers, where it is expected to be secure for many thousands of years, or incorporated in durable materials (eg. building materials) – some of the most lasting and highly scalable ways to store CO2.

Length of storage
Millennia

Co-benefits & potential side effects
The capture process requires a lot of energy, which must come from a zero or very low-carbon source so it doesn’t cancel out the carbon removed.

Direct Air Capture

Removal Type

Blue Carbon

Ocean Alkalinity Enhancement (OAE) is a method that speeds up the ocean’s natural carbon sink by adding alkaline substances to seawater. OAE decreases the CO2 in surface waters which allows for the ocean to uptake more atmospheric carbon. This process naturally happens over geological timescales but accelerating it will make it relevant for the timelines we have to solve for the climate crisis.

Durability
The process transforms dissolved inorganic CO2 in the sea into stable forms of carbon that last around 10,000 years.

Speed of drawdown
~1 year

Co-benefits
The minerals used can reverse acidification and reduce algal bloom

Blue Carbon

Case study

Financing to Scale
Carbon Removal through

We know that the business of developing carbon removal solutions is incredibly complex and challenging. Upfront capital requirements are high, product development processes are long, and the revenue from carbon credit sales is far in the future. 

CUR8 is working with leading companies to unlock financing to scale carbon removal solutions. This means that suppliers can focus on innovating rather than funding. 

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Case study

CUR8, Standard Chartered Bank, British Airways and Partners Deliver Milestone Forward-Financing Solution

We recently reached a significant milestone at CUR8. Working alongside British Airways, Standard Chartered and UNDO, we’ve built and successfully completed a first-of-a-kind solution to overcome one of the biggest hurdles to financing carbon removals. 

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Case study

Top 10 Misconceptions About Carbon Removals, Debunked

Have you heard of these misconceptions about carbon removals? Come read more to learn what's fact or fiction.

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Case study

Putting the “Net” in Net Zero: Aviation

Catch the panel from Farnborough International Airshow 2024.

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Are you a carbon

removals supplier?

We want to work with the best and most promising projects in the world. Together scaling the world’s Carbon Removal market.  

Whatever your stage of maturity and development, we’d love to hear from you.

Simply click apply below to partner with us today.

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