Reasons ratings may differ between Calyx Global and other rating agencies

State of the Voluntary Carbon Market, 2026

Calyx Global is now rating cookstove projects under Verra’s VM0050 methodology

Are you backing the right carbon projects? A corporate guide to spotting integrity risks before credits are issued.

Ozone depleting substances: unpacking carbon credit integrity under a new methodology

Rating credits from the first CCP-aligned cookstove project

Blue Carbon: What the rising tide of coastal conservation means for the voluntary carbon market

Abandoned mine methane (AMM): what it is, where projects are, and what to watch for

ICVCM’s new biochar and forest management approvals: What changed, what didn’t and what buyers should ask

Tracking projects transitioning from CDM to Article 6.4

First CAR Mexico Forest Protocol Rating After Second Field Verification

The Guardian (Again): Are they right or wrong?

Superpollutants: Tackling a major climate threat

What is CORSIA and why is it important?

How deferred accounting undermines the quality of CDR credits

An introduction to improved forest management VM0010 projects

Meta & Calyx Global: The hidden cost of embodied emissions

An Introduction to direct air capture

Introducing your compass for de-risking early-stage carbon opportunities

Understanding carbon project methodologies: A guide to setting smarter investment criteria

Stirring the pot: cookstove projects and the wood-to-charcoal conversion factor

Mid-Year 2025: 5 Insights shaping carbon credit quality and price

Reality check on carbon removals: 4 takeaways from our webinar

Embodied Emissions Accounting for Engineered Carbon Dioxide Removals (eCDR)

How can carbon credit ratings agencies save me time?

How to use carbon credits to support climate goals without adding complexity

Carbon Dioxide Removals: Buyer challenges and opportunities

Turning up the heat – a breakdown of artisanal biochar

Where can I find removals with high SDGs

An introduction to LDAR

Analyzing the first credits transitioning to the Article 6.4 Paris Agreement Crediting Mechanism

A buyer’s J-REDD quality checklist

How moving to new frameworks improves quality faster: a case study of Plan Vivo

What cookstove and household biodigester projects are CCP label eligible

Why does natural carbonation decrease emission reduction claims for some concrete projects?

An introduction to biochar

An introduction to jurisdictional REDD

Are carbon credit quality indicators delivering?

Digging deeper into coal mine methane projects

An introduction to CO2-injected concrete carbon projects

Breaking new ground in carbon markets: first-of-their-kind indices

An introduction to bio-oil geological storage projects

The state of quality and pricing in the VCM 2025

Injecting CO2 into concrete has great potential, but not as a source of removal credits

An introduction to coal mine methane projects

An introduction to solar lighting projects

Key takeaways from HFC project assessments

The ICVCM gray zone

How the new GS methodology for cookstoves improves credit integrity

Calyx Global’s environmental and social risk screening overview

The ICVCM endorsement of project REDD: Our take on VM0048

An introduction to Hydrofluorocarbons (HFCs)

Unpacking Verra's new additionality tools: Enhancing credibility in carbon markets

What is carbon dioxide removal (CDR) and what types of credits are available?

Introducing metered cooking device carbon credit ratings

Avoidance vs. Removal Credits: Is one better than the other?

Comparing carbon project headlines to our ratings

Rating the first cookstove credits eligible for Article 6 transactions

State of the VCM quality update: Continued slow improvement

An introduction to GHG emission mitigation in wastewater operations

Transitioning the VCM towards Article 6 - a cookstove example

ICVCM decision aligns with Calyx Global assessments of renewable energy projects

Are newer carbon credit vintages better?

An introduction to plugging of orphan oil and gas wells

The biggest problem with carbon credits is not measurement error (extended)

The biggest problem with carbon credits is not measurement error

What makes a high-quality carbon credit?

Verified SDG contributions vs. self-claimed

ICVCM CCP Labels: Proceed with caution on LFG projects

Calyx Global Shows Scrutiny of the Carbon Market May Be Paying Off

CAR Mexico Forest Projects: High uncertainty results in projects “on watch”

The state of quality in the VCM 2024

Nitrous oxide abatement project insights

A deeper dive into nitrous oxide abatement projects

An introduction to large-scale manure management carbon projects

Cookstoves and biodigesters: an educational series

When are carbon credits additional

How carbon credit standards address safeguards

Defining quality for N2O abatement projects

4 steps to higher carbon credit ratings for improved cookstove projects

A Recipe for Success for Improved Cookstove Projects

Wasted Potential: What we've learned after rating 100+ landfill gas projects

What is N2O abatement in nitric acid production?

The Cookstove Debate: Addressing Over-crediting and Rural Peoples’ Needs

What is a Household Biodigester Carbon Project?

fNRB: A Deeper Dive

ICVCM Categories vs. Calyx Ratings: how do they compare?

Why fNRB is key for cookstove and household carbon projects

Evaluating the GHG integrity of cookstoves and biodigesters: A series introduction

5 safeguard areas carbon-crediting programs can improve

What are safeguards and why they matter for your carbon credits

Insight into the rating factors for large-scale grid-connected renewable energy (ACM0002) projects

Comparing demand for REDD and ACM0002 carbon credits

Why better technology is not (the) key to fixing REDD credits

Accusations of abuse surface in the Kasigau Corridor REDD Project

Why Sustainable Development Goals matter and their role in carbon credits

Carbon credit quality is more than GHG integrity

ICVCM FAQs

Rightsizing Carbon Credits

Is there a correlation between carbon credits' GHG integrity and SDG impact?

Vintage matters: a more rigorous carbon credit rating

Fuel-switch cookstoves: How they differ from improved cookstoves

The Challenge of 'Tagging' CORSIA-eligible Units

Cooking up Quality: Carbon credits from efficient cookstove projects face integrity issues worth fixing

VM0048/REDD Analysis pt. 4 - Permanence and Additionality: Waiting in the Wings.

VM0048/REDD analysis pt. 3 - Baseline revision schedule: Timing matters.

VM0048/REDD analysis pt. 2 - Baselines: All We’ve Been Waiting For?

VM0048/REDD analysis pt. 1 - Emissions monitoring: Under the Radar.

Turning REDD into Green: Six steps to a highly rated REDD project

Beyond Carbon: How REDD+ projects promote sustainable development

Turning REDD into Green

Landfill Gas projects garner high ratings but low interest

Three early insights from Calyx Global’s carbon credit ratings