Climate Litigation News and Case Updates | March 23-27, 2026

This page provides the latest climate litigation news, tracking key court decisions, new filings, and procedural developments from climate change lawsuits around the world. Updates are added on a rolling basis through the Climate Court Litigation Tracker, which monitors significant climate-related cases across national and international courts, including climate lawsuits, climate-related environmental litigation, biodiversity litigation, greenwashing cases, and corporate climate accountability claims.

Below are the latest climate litigation developments from this week, organised by date to reflect when rulings were issued or cases were filed. This page is updated daily as new climate and environmental cases emerge globally. Earlier updates and archived coverage are available in the Resources section.

March 23

Argentina:

• Greenpeace Files Supreme Court Complaint Over Rising Deforestation in Argentina: Deforestation, biodiversity loss, forest governance

Australia:

• Australian High Court Hears Climate Assessment Challenge in Coal Mine Approval: Environmental impact assessment, scope 3 emissions, fossil fuel projects

Germany:

• German Federal Court Rejects Climate Claims Against Car Manufacturer: Corporate liability, EU regulation, emissions standards

United Kingdom:

• UK Regulator Advances Greenwashing Complaint Against British Airways: Greenwashing, consumer protection, aviation emissions

  
  

March 24

United States:

• Appeal Filed Challenging Approval of Montana Coal Mine Expansion: Environmental review, mining impacts, climate assessment

• California Challenges Federal Restart of Sable Oil Pipeline: Federal-state conflict, energy infrastructure, executive authority

March 25

United States:

• U.S. Court Allows Methane Leak Lawsuit Against National Grid to Proceed: Methane emissions, public nuisance, urban climate impacts

• Maryland Supreme Court Dismisses Climate Damages Claims Against Oil Major: Federal preemption, climate damages, tort law

  
  

• Challenge Filed Against Georgia Power’s 10 GW Gas Expansion Approval: Energy planning, fossil fuel expansion, ratepayer impacts

March 26

Ireland

• Appeal Filed Against Longford Quarry Plan Over Biodiversity Concerns: Biodiversity protection, land restoration, planning appeal

March 27

United States:

• D.C. Circuit Blocks Florida Wetlands Permitting Takeover: Clean Water Act, federal-state authority, wetlands permitting

More detailed summaries, original pleadings, and real-time tracking are available to subscribers through the Climate Court Litigation Tracker. As climate litigation continues to shape corporate behaviour, regulatory enforcement, and climate-risk governance, staying informed about legal developments has become essential for legal practitioners, businesses, investors, civil society organisations, and policymakers worldwide.

Full case analyses, original pleadings, and real-time tracking are available to subscribers through the Climate Court Litigation Tracker. As climate litigation continues to shape corporate behaviour, regulatory enforcement, and climate-risk governance, staying informed about legal developments has become essential for legal practitioners, businesses, investors, civil society organisations, and policymakers worldwide.