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Carbon & Climate Reporting

Measure your emissions and prepare your carbon and climate disclosures aligned to AASB S1 and S2, with confidence.

Get Your Emissions and Climate Disclosures Right

Climate reporting is now mandatory for large entities and increasingly expected of everyone else, and it rests on something deceptively hard: measuring your emissions accurately and disclosing them to the standard.

Ascentium helps you measure your carbon footprint across Scopes 1, 2, and 3 and prepare your climate disclosures under AASB S1 & S2, so you can prepare a sustainability report alongside your annual financial report, directors’ report, and auditor’s report.

Why Does Carbon and Climate Reporting Matter?

More Australian businesses are meeting the threshold for mandatory reporting. However, while most are large enough to shape supply chains and capital flows, they often lack the sustainability and data infrastructure of the ASX 100.

Mandatory Disclosure

Australia’s mandatory climate disclosure regime, under AASB S2, is phasing in by entity size from 2025, requiring climate-related disclosures within the annual report.

How We Approach Your Carbon and Climate Reporting

We work from the boundary out, getting the measurement right before building the disclosure, so the report rests on solid data.
Step 1

Scope and Baseline

We define your organisational and reporting boundaries, identify the obligations that apply, and establish a baseline.

Step 2

Conduct a Gap Analysis 

Compare current reporting practices with the AASB S2 standards. Identify data gaps, process weaknesses, and governance shortfalls across emissions measurement, scenario analysis, and risk integration.

Step 3

Measure Emissions

We help you capture, validate, and report Scope 1, 2 and 3 greenhouse gas emissions and other sustainability metrics, helping you engage your supply chain to establish consistent data collection.

Step 4

Prepare the Disclosures

We prepare your climate disclosures under AASB S2.

Step 5

Ready for Assurance and Improve

We prepare the report to be assurance-ready, and support carbon reduction and transition planning so each year builds on the last.

What Our Services Cover

From measuring your footprint through to preparing assurance-ready disclosures, we cover the full reporting cycle.

Carbon & Emissions Measurement

Mandatory Climate Disclosure (AASB S2)

NGER Reporting

Climate Risk & Scenario Analysis

Net-Zero & Transition Planning

Voluntary Climate Reporting

Data Systems & Assurance Readiness

Why Choose Ascentium

Climate reporting is, at heart, a measurement and reporting discipline, and that is exactly where an accounting and assurance firm adds value.

We bring the rigour of financial reporting to your emissions data, so your footprint is complete, consistent, and defensible.

Business Colleagues Reviewing Data on Screen

Accurate Emissions, Credible Climate Disclosures

Carbon and climate reporting from an experienced team of experts, measuring your emissions to the Greenhouse Gas Protocol and preparing your disclosures under AASB S2, ready for assurance.

Related Leaders

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What Our Clients Are Saying

Frequently Asked Questions (FAQs)

Carbon and climate reporting involves measuring your greenhouse gas emissions and disclosing your climate-related governance, strategy, risks, and targets. In Australia, large entities now report this under the mandatory climate disclosure standard, AASB S2, while many others report voluntarily.

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