š Turn Methane into Money: How Biochar Feed Additives Help Reduce Emissions & Earn Carbon Credits
- jaryl3
- Jun 15
- 5 min read
As global pressure mounts to reduce greenhouse gas emissions, the livestock industry ā which contributes up to 40% of human-induced methaneĀ ā has become a key focus in climate mitigation strategies. One of the most promising innovations emerging from scientific and agricultural communities is biochar as a feed additive.
Backed by research, biochar not only lowers methane emissions but improves animal performance. And now, these benefits can be monetized through international carbon credit marketsĀ ā unlocking new income for forward-thinking farms, feed producers, and investors..
š¬ What the Research Says: Biochar Can Cut Livestock Methane Emissions
Scientific studies are increasingly examining the role of biochar as an enteric methane reduction agentĀ in livestock systems ā
A meta-analysisĀ in AnimalsĀ (2020) led by Leng et al. found that supplementing ruminant diets with 0.8ā1% biochar (dry matter)Ā led to 9.5ā18% reductions in enteric methane emissionsĀ .
A trial at the University of QueenslandĀ reported a 22% methane reductionĀ with 0.6% rice-husk biocharārising to 41%Ā when combined with nitrateāalongside better weight gain and feed efficiency .
A 2023 review in Frontiers in Animal ScienceĀ showed biochar reducing methane by 30ā40% in cattle, plus significant drops in goats and poultryĀ .
Review in Journal of Experimental Biology & Agricultural Sciences (2023): Found biochar improved digestion, toxin adsorption, and methane reduction across multiple species.Ā Ā
Australian MLA fit-for-purpose study: Some in-vivo trials recorded up to 41% methane reduction under controlled conditions.Ā

ā ļø Mixed and Neutral Findings
While biochar has shown potential to reduce enteric methane emissions, not all studies report consistent or positive results. For example, research by Winders et al. (2019)Ā and trials conducted by the USDA Agricultural Research ServiceĀ observed no statistically significant reductionsĀ even with inclusion rates up to 3% of dietary matter.
The Global Research AllianceĀ also highlights that outcomes vary widelyĀ due to multiple factors, including:
Biochar source and pyrolysis temperature
Animal species and gut microbiota
Feed type and overall diet composition
Biochar reduces methane by 9ā40%Ā in many cases ā but success depends on factors like biochar source, particle size, and animal type.

How Biochar Works: Scientific Mechanisms
š§Ŗ Adsorption & Microbial Modulation
Biocharās porous structure enables it to adsorb fermentation by-productsĀ in the rumenāsuch as hydrogen and volatile fatty acidsāreducing the availability of substrates for methane-producing archaea. It may also promote the growth of methanotrophic bacteria, which oxidize methane within the digestive tract, contributing to reduced emissions.
š References: Leng et al., 2012; Cayuela et al., 2014
š Synergy with Feed Additives
Multiple studies show that biocharās methane mitigation effect is enhancedĀ when combined with additives like nitrate, tannins, or oils. One trial found that adding nitrate to a biochar-supplemented diet resulted in a 41% reduction in methane, compared to 22% with biochar alone.
š Reference: Asanuma et al., 2021
šø Carbon Credit Methodologies: Where Biochar Projects Fit
1.Ā Climate Action Reserve (CAR) ā Biochar Protocol
Covers long-term carbon sequestration in soils via biochar. While enteric methane reduction is only a co-benefit, including such data may help demonstrate enhanced impact.
2.Ā Verra VM0041 ā Feed Additive Methodology
Credits methane reduction from feed-based interventions (e.g., Mootral, a garlic-citrus additive). Although biochar is not yet formally approved, this sets a precedentĀ for feed additive-based credits.
3.Ā Gold Standard ā Manure and Organic Waste Methodologies
While originally focused on manure treatment, new Gold Standard guidance allows methane avoidance from organic waste, including biochar-enhanced animal management ā if proven with robust MRV and additionality.
š Projects can bundle enteric methane co-benefits with soil carbon sequestrationĀ or prepare for future eligibility under evolving feed-based standards.

Practical Takeaways from Greenchar to Project Developers
ā Our Recommendations
Choose verified, standardized biochar
Consistent carbon content, particle size, and absence of heavy metals are essential for safety and efficacy in livestock diets.
Pilot inclusion at 0.5ā1% of dietary dry matter (DM)
Start small, monitor performance indicators (weight gain, feed efficiency), and test synergy with nitrate or tannins.
Collect robust methane emission data
Use respiration chambers or portable gas analyzers to record enteric emissions and build credible MRV evidence.
Align with existing carbon credit standards
Focus on soil carbon protocols (Verra, Puro.Earth) while documenting co-benefits to prepare for future feed-based methodologies.
Build eligibility documentation early
Record baseline emissions, additionality, and animal health parameters to position your project for carbon revenue access.
Dual Benefits to Promote
Benefit | Description |
šø New Revenue Stream | Potential for methane-based carbon credits on top of biochar soil sequestration credits |
š Livestock Efficiency | Improved digestion, feed conversion, and animal weight gain |
š± ESG Value | Demonstrate climate leadership through circular waste reuse and emission mitigation |

š„ Turn Methane Into Money: Carbon Credits for Biochar Feed Additives
If youāre already feeding livestock ā why not get paid for reducing methane?
At Greenchar Climate Solutions, we help farmers, feed manufacturers, and livestock companies earn international carbon creditsĀ by adopting biochar in feed.
Looking to source high-quality animal-grade biochar?Greenchar offers access to a trusted network of global suppliers ā each verified for quality, safety, and carbon credit eligibility. Tap into our ecosystem and start benefiting from certified, impact-driven biochar today.


ā Why Apply for Carbon Credits with Greenchar?
Benefit | How It Helps You |
Earn $$ from your daily operations | Methane reduction from animal feed can be recognized under carbon standards like Verra and Gold Standard. We help turn that into certified credits. |
Proven science | Trials show up to 30ā40% methane reductionsĀ with proper biochar inclusion. Even modest reductions count. |
We handle certification | You donāt need to navigate complicated documents ā Greenchar handles verification, MRV, and credit sales. |
Get global buyer access | We link your project with international carbon buyers across the U.S., EU, and Asia. |
Free Pre-Assessment | Not sure if you qualify? Weāll check for free. If it works, we do the heavy lifting and share revenue. |
š Who Should Apply?
Livestock farms using or testing biochar, seaweed, nitrate, or other feed additives
Feed companies manufacturing additive blends
Large-scale biochar producers looking to pilot animal-feed projects
Cooperatives with access to animal waste + feed trials
š” How the Process Works (With Us)
Free Pre-AssessmentĀ ā We check your feed usage, animals, and local context.
Trial DesignĀ ā We guide your team on how to collect basic data.
MRV & CertificationĀ ā Greenchar prepares your carbon documentation and certification under Verra, Isometric, or Puro.
Sell CreditsĀ ā We help you sell credits internationally or use them to boost ESG branding.
Profit SharingĀ ā You keep the majority of the income. We only take a % if youāre earning.
Register For a FREE Consultation With Our Expert Team Now ! š
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