Why Water Is Becoming a Board-Level ESG Priority Worldwide?

WRI's Aqueduct 4.0 framework scores water risk using 13 indicators, covering baseline water stress, riverine flood risk, and drought risk, at the level of individual river basins and then aggregated up to country and provincial scales. It is the reference dataset most widely used by companies and assurance providers to identify which of their operating sites sit in water-stressed locations.

On the financial side, WRI's figures show that $70 trillion of global GDP, 31% of the total, will be exposed to high water stress by 2050, compared with $15 trillion, or 24% of global GDP, in 2010. Just four countries, India, Mexico, Egypt, and Turkey, account for over half of that exposed GDP by 2050.

On the regulatory side, the EU's ESRS E3 standard, developed by EFRAG under the CSRD, requires in-scope companies to disclose water consumption, withdrawals, and discharges once a double materiality assessment identifies water as a material issue. The standard directs companies to screen their sites, assets, and activities for water risk, and Wave 2 CSRD reporters will file their first E3 disclosures on FY2027 data, in 2028 reports.

Water risk has stopped being a topic boards can delegate entirely to operations or sustainability teams. The financial exposure figures are specific, the physical disruptions are already documented, and the disclosure requirements are now written into regulation rather than left to voluntary reporting.

As more companies come into scope of standards like ESRS E3 over the coming years, boards that start screening their footprint against water-stress data now will have a head start over those that wait for the filing deadline to force the exercise.