# Legal litigation regarding Rio Grande do Sul floods

> Live situation record from CLSTR: https://clstr.news/situations/legal-litigation-regarding-rio-grande-do-sul-floods
> Updated: 2026-10-12T23:59:48.000Z. Sources: 16. Developments: 2.

Legal actions have emerged in Brazil seeking compensation for damages caused by the historic floods in Rio Grande do Sul in early 2024.

In one ruling, the Court of Justice of Rio Grande do Sul ordered the municipality of Porto Alegre to pay R$ 50 million in collective moral damages. The court found the city administration negligent in maintaining its flood protection system, rejecting the defense of “force majeure” because the risks were foreseeable. The fine is intended for climate adaptation projects, such as rain gardens and ecological corridors.

Separately, a civil public action has been filed against Shell Brasil by the Federal Public Ministry and the Instituto Preservar. This lawsuit seeks R$ 541 million in compensation, arguing the company bears responsibility for the intensification of extreme weather events due to its historical greenhouse gas emissions. The plaintiffs propose that funds from such claims be used for disaster prevention and reconstruction in the affected region.

## Claims

- The MPF and Instituto Preservar filed a civil public action against Shell seeking compensation for damages caused by the May 2024 floods in Rio Grande do Sul. (corroborated by 3 sources)
- The lawsuit seeks a total of R$ 541 million in compensation. (corroborated by 3 sources)
- The plaintiffs propose that any awarded funds be directed to a specific financial instrument for climate adaptation, disaster prevention, and reconstruction in Rio Grande do Sul. (corroborated by 2 sources)
- According to Carbon Majors, the Shell Group is responsible for just over 2% of historical CO2 emissions. (single source)

## Timeline

### 2026-10-12: Shell faces R$ 541 million lawsuit over Rio Grande do Sul climate damages

The MPF and Instituto Preservar are suing Shell Brasil for R$ 541 million, seeking compensation for damages caused by the 2024 Rio Grande do Sul floods linked to historical greenhouse gas emissions.

9 sources. https://clstr.news/cluster/brazil-legal-actions-target-environmental-damage-and-climate-impact

### 2026-09-28: Porto Alegre ordered to pay R$ 50 million for 2024 flood negligence

Porto Alegre has been ordered to pay R$ 50 million in collective damages due to municipal negligence in maintaining flood protection systems during the 2024 floods.

9 sources. https://clstr.news/cluster/brazilian-courts-rule-against-health-insurers-over-denied-medical-coverage

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Cite as: Legal litigation regarding Rio Grande do Sul floods. CLSTR, https://clstr.news/situations/legal-litigation-regarding-rio-grande-do-sul-floods