Last mentioned: Mar 19, 2026
State Coalition Lawsuit
US states file a joint lawsuit to block the EPA's repeal in federal court.
EPA Repeal Announcement
The Trump EPA formally moves to rescind the 2009 Endangerment Finding.
Endangerment Finding Issued
EPA officially finds that six greenhouse gases threaten the health of current and future generations.
Massachusetts v. EPA
Supreme Court rules EPA must regulate GHGs if they are found to endanger public health.
A coalition of US states has filed a high-stakes lawsuit against the Environmental Protection Agency to block the repeal of the 2009 Endangerment Finding. The legal challenge argues that the administration is ignoring established science to dismantle the foundation of federal greenhouse gas regulations.
This page surfaces every story mentioning US States Coalition across our legal coverage. We track each entity's appearance over time so readers can trace how the narrative evolves — which developments are isolated incidents, which build into longer arcs, and which reframe how operators in the space think about the entity. Story selection uses the same multi-source verification gate applied across the rest of our coverage.
Read our editorial methodology for how we identify, deduplicate, and score entity references. Our glossary defines the technical terms used across stories on this page, and our trends index contextualizes individual developments against the longer-running legal beat. Cross-entity comparisons live on our compare view.
| What you see | What it tells you |
|---|---|
| Story count | Number of distinct stories where US States Coalition was a primary or referenced actor. |
| Recency clustering | Whether mentions are concentrated in a recent window (a news cycle) or distributed (a sustained arc). |
| Sentiment distribution | Aggregate sentiment of the stories mentioning this entity, weighted by impact score. |
| Cross-niche links | When the same entity surfaces in our sibling networks, we link to those views to enrich context. |