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OnePointFive: Carbon Accounting

Master the GHG Protocol and build audit-ready emissions inventories across all scopes

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For most sustainability professionals, the gap between understanding why carbon matters and knowing how to actually measure it is wide. As global regulations raise the bar, ballpark estimates no longer hold up with investors or regulators — and the pressure to produce credible, audit-ready emissions data is landing on teams that weren't trained for it.

This course cuts through the complexity of carbon accounting by grounding everything in the GHG Protocol, the standard underpinning frameworks like SBTi, CDP, and CSRD. You'll move through a full accounting cycle — from mapping emission sources and setting boundaries to calculating Scope 1, 2, and 3 inventories — with a hands-on lab using real activity data. The goal isn't just to understand the theory; it's to leave with a repeatable, defensible process you can own.

Outcomes

  • Own your organization's carbon inventory with confidence
  • Map emissions accurately across your full value chain
  • Speak credibly to investors and regulators on emissions
  • Prepare audit-ready data for CDP, CSRD, and SBTi
  • Identify where your biggest reduction opportunities are

What's included?

  • Interactive Carbon Accounting Lab

    Hands-on exercise calculating emissions using real activity data and emission factors.

  • Practitioner-Led Insights

    Learn from experts building and analyzing GHG inventories at organizations globally.

  • Accounting Resources

    Downloadable resources and templates you can leverage immediately.

  • Community Access

    Connect with sustainability professionals in the OPF network.

  • OPF Certificate of Completion

    Official certificate awarded upon completing the course.

  • Course Access

    Six months of access to on-demand course content, materials, resource space, and exercises.

Who is this for?

  • Sustainability Leads tasked with building a carbon footprint with a credible, audit-ready methodology.
  • Finance & Operations Professionals who manage the data but need to understand the climate frameworks behind the numbers.
  • Supply Chain & Procurement Specialists managing vendor relationships and Scope 3 emissions data.

About the creator

Neil Yeoh picture

Neil Yeoh

Founder of OnePointFive – Architect of the OnePointFive Pathway™

I’m Neil Yeoh, founder of OnePointFive and architect of the OnePointFive Pathway™. Over the past decade I’ve partnered with leading organisations to implement strategic sustainability solutions across climate technology, finance, and policy. My work...

OnePointFive: Carbon Accounting | Circle Discover