Brazil’s sanitation firms boost climate‑resilience plans as El Niño looms

An intense El Niño cycle is prompting Brazil’s water‑and‑sewage concessionaires to intensify preparation for extreme weather. Forecasts call for reduced rainfall in the North and Northeast, threatening water availability, while higher temperatures in the Southeast and Central‑West are expected to raise water consumption and stress supply systems. Analysts also warn that excess precipitation in the South could overload urban drainage and raise flood risks.

Companies such as Aegea, Sabesp and Iguá Saneamento are expanding investments in technology and infrastructure. Aegea uses artificial‑intelligence models that project scenarios up to six months ahead, guiding actions like repositioning pumps in the Rio Negro and adding new wells, reservoirs and supply capacity in Piauí and Pará. Sabesp plans to spend R$ 7.8 billion between 2025‑2030 on water‑security and climate‑resilience measures, including leak‑detection technology, smart meters and extra water tanks for vulnerable households. Iguá Saneamento has built real‑time control centres to monitor rivers, reservoirs and flow rates, and is expanding reservoirs and modernising distribution networks.

Industry leaders stress the “new normal” of climate change. Alexandre Nascimento of Nottus said, “We are experiencing a new normal. Companies will have to use a lot of intelligence to manage a problem that is here to stay.” Paula Violante, COO of Iguá, added, “We cannot make it rain, but we can improve the system to prepare the company for more critical situations.” Regulatory bodies are gradually incorporating climate‑risk clauses into recent concession contracts, further shaping sector‑wide resilience strategies.