Chapter 03 · Reporting & strategyReporting, Disclosure & Frameworks
Climate disclosure
Definition
The public reporting by organisations of climate-related information — governance, strategy, risk management, metrics and targets, and greenhouse-gas emissions — following structured frameworks. Voluntary practice consolidated around the TCFD recommendations (2017), whose four-pillar architecture now underpins mandatory regimes built on the ISSB's IFRS S2 standard, the EU's CSRD/ESRS, and jurisdiction-specific laws such as California's SB 253/SB 261.
References
TCFD four pillars and 11 disclosures; TCFD dissolution and IFRS S2 succession; 36 jurisdictions adopting ISSB (2026); SEC rule withdrawal; mandatory landscape (UK, NZ, EU, California SB 261).
IFRS S1/S2 content and effect from 1 January 2024; ISSB vs CSRD materiality difference; jurisdiction adoption examples.
Overview
What it means
Climate disclosure travelled from niche ESG practice to financial-mainstream obligation in under a decade: the TCFD disbanded in 2023 having completed its mandate, with its content absorbed into IFRS S2; as of 2026, 36 jurisdictions have adopted or are finalising ISSB-based requirements, the UK, EU, Australia, Singapore, Japan, Brazil, Nigeria and others mandate climate reporting in some form, and the US federal SEC rule was withdrawn after litigation — leaving state law (California) as the US driver.
The field's live fault lines: financial materiality (ISSB) versus double materiality (CSRD), Scope 3 feasibility, assurance depth, and the transition from disclosing risk to demonstrating credible transition plans.
How it is used
Companies produce IFRS S2/CSRD-aligned reports with scenario analysis and Scope 1–3 inventories; investors and regulators consume disclosures for risk pricing and supervision; assurance providers verify emissions data; litigation and green-claims enforcement test disclosure accuracy.
Why it matters
Climate disclosure is the connective tissue between climate science and capital allocation — the mechanism meant to make climate risk visible, priced and managed across the economy.