To find a federal climate lawsuit, search the federal court’s docket if you know where the case was filed; otherwise, start with PACER’s nationwide Case Locator. For a U.S. Supreme Court case, use the Court’s official Docket Search and subscribe to case-specific email alerts from its docket page. Always check the docket itself: a filing is not the same as a court ruling.
Find a federal climate lawsuit
Federal district courts and courts of appeals use PACER and their Case Management/Electronic Case Files (CM/ECF) systems. You need a PACER account to access federal case records. Choose your starting point based on whether you know the court.
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| Starting point | Use it when | Update timing |
|---|---|---|
| The specific federal court’s search | You know which court has the case. | PACER says specific-court information is updated immediately. |
| PACER Case Locator | You need a nationwide index to identify the court or case. | PACER says the locator is updated daily. |
Search and open the case record
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Search by a party name or case number. If you do not know the number, search the names of the parties and note the court and case number in the results. Once you have the number, use it for later searches to avoid unrelated cases with similar names. PACER’s search help describes party-name and case-number searches; the locator can also search by nature of suit and date fields.
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Open the case through the linked court CM/ECF record. Locator results link to more detailed case information. Read the docket text, then open the underlying document when available.
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For a current update, revisit the specific court’s docket. The nationwide locator can help you find a case, but the court’s own record is the better place to check the latest listed activity.
Find a U.S. Supreme Court case and follow it
Use the Supreme Court’s Docket Search to search by case name, docket number, or words in the docket report. Its current system provides complete status information for cases filed since the beginning of the 2001 Term.
Subscribe to case-specific email alerts
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Open the case’s docket page from the search results.
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Select the envelope icon and follow the prompts to enter and confirm your email address. The Court sends notifications when there is new filing activity or court action.
The Court’s docket-search page says, “Users can also sign up to receive email notifications of activity in pending cases.”
Read the docket without mistaking a filing for a ruling
A docket is a chronological record of filings and court actions. The Supreme Court provides electronic images of most submissions made after November 13, 2017. Read the entry and, where available, the document itself to see what happened.
- Party briefs present the arguments of the parties who filed them; they are not judicial findings.
- Motions ask the court to take a particular action.
- Orders are short rulings, often resolving motions or petitions.
- Opinions explain the Court’s decision in a case.
For further explanation, see the Supreme Court’s Orders of the Court page.
Use the official Boulder County v. Suncor docket as a live example
The Supreme Court docket for County Commissioners of Boulder County v. Suncor Energy (U.S.A.) Inc., No. 25-170, shows why checking the actual docket matters. As of October 3, 2026, it listed oral argument for October 5, 2026, and its latest listed entry was a September 28, 2026 clerk letter to counsel noting that Justice Alito would not continue to participate in the case. These are docket and scheduling facts, not a prediction of the outcome; check the live docket for later activity.
What the docket records
The Court granted the petition on February 23, 2026, and directed the parties to brief and argue an added question: “Whether this Court has statutory and Article III jurisdiction to hear this case.” The petitioners’ merits brief was filed May 14, 2026, and the respondents’ brief was filed July 27, 2026.
A merits brief is a party’s argument, not a ruling. For example, the petitioners’ brief should be read as the petitioners’ account and arguments, not as findings adopted by the Court.
Get alerts for lower federal court cases
Some federal courts offer free RSS notifications, but availability depends on the court. PACER says these feeds summarize activity and link to the document and docket report. You still need to log in to PACER to open linked records. Check the specific court’s CM/ECF page for an RSS option; do not assume every court provides one.
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State climate lawsuits
This process covers federal court records and U.S. Supreme Court cases. State trial and appellate courts maintain separate docket systems, so use the relevant state court’s portal for a state lawsuit. If you cannot find a party in the PACER Case Locator, PACER advises contacting the federal court where you believe the case was filed.
Transcripts
PACER says transcripts are added to the system 90 days after they are produced. During that period, contact the clerk’s office about inspecting a copy or obtaining one from the reporter or transcriber. This delay concerns transcripts, not ordinary docket entries.
Check the record again before sharing an update
Filings and hearing schedules can change. PACER says specific-court information is updated immediately, while its nationwide locator is updated daily. For a time-sensitive report, verify the case on the court’s own docket immediately before sharing the update.
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