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Rising water risks drive push for common water reporting rules

By Thomson Reuters Apr 22, 2026 | 3:32 AM

By Simon Jessop

LONDON, April 22 (Reuters) – Failure to track water use in the same way across the world is making it harder to assess ​risks as climate change and population growth ‌strain freshwater supplies, prompting a new initiative to push for a common accounting approach.

Unlike carbon emissions, water use is reported under a patchwork of standards with inconsistent definitions, complicating comparisons across companies, ‌sectors ​and regions.

“Everyone is tracking something ⁠different, often using the ⁠same words to mean different things,” said Lauren Enright, programme manager of water services at consultants SCS Global, which is helping to convene the group.

“That creates ​real problems for investors, auditors and communities trying to understand what companies are actually doing with water.”

Backed ⁠by the World Resources Institute, ⁠WWF and the U.N.-backed CEO Water Mandate, ​the initiative aims to launch later in April and is ​expected to be called Corporate Guidance for Assessing ‌Water Scopes 1-3 in Value Chains.

Rather than replacing existing reporting regimes – such as the European Union’s Corporate Sustainability Reporting Directive – it aims to sit beneath them, providing ⁠a common set of definitions and core concepts.

The push for a common approach has intensified as water stress increasingly affects ⁠sectors such ‌as technology, where consumption by data centres ⁠has sparked community protests across the ​world.

For investors, ‌the framework could turn often qualitative ​or narrative ⁠disclosures into data that are “very decision-useful”, said Ida Hempel at climate-focused investment firm Galvanize Climate Solutions.

“It would allow us to actually compare companies and then specific interventions on more of a like-for-like basis.”

(Reporting by Simon Jessop. Editing ​by Mark Potter)