Terms of Use

Last updated 25 October 2026.

SeaLevelMap.io, the website and the interactive map, is published by Other Waters, LLC (Other Waters Studio). By using it you agree to these terms.

What the map is for

SeaLevelMap.io is a free educational resource for teachers, students and anyone curious about how the Earth's coastlines and ice have changed. It shows scientific reconstructions and models, which carry real uncertainty; the FAQs and the Data page explain where.

It is not a survey or a forecast. Don't rely on it for navigation, engineering, construction, insurance, property, legal or safety decisions.

No warranty

The map and the website are provided "as is", without warranties of any kind, including accuracy, completeness or fitness for a particular purpose. To the extent the law allows, Other Waters, LLC is not liable for any loss or damage arising from their use.

Sharing and reuse

The website's text and design are © Other Waters and licensed under Creative Commons Attribution-NonCommercial-ShareAlike 4.0: you may share and adapt them for non-commercial purposes if you credit SeaLevelMap.io and share what you make under the same licence.

Images and screenshots of the map may be shared for non-commercial purposes, such as teaching, study, research and personal projects, if you credit "SeaLevelMap.io, Other Waters Studio" and keep the credits for the data sources shown on the map and the Data page. The data behind them keeps its own terms (below).

Commercial use needs written permission. That includes use in products sold for profit, such as published textbooks, paid courses, apps and advertising. Write to us: we often say yes, especially for education.

The data

The map is built on data from many scientists and institutions, each credited on the Data page. Their data remains theirs, under their own terms. Some of it was shared with this project personally and may not be extracted or redistributed.

What you may not do

• Copy, scrape or bulk-download the map's data, tiles or images by automated means, beyond what viewing the site in a browser involves.
• Copy the map's software, or use it or its data to build a competing or commercial service. The software is not open source; all rights are reserved.
• Use the map's content to train machine-learning models without written permission.
• Suggest that Other Waters, or any scientist credited on the site, endorses your use.

Support

Contributions through Buy Me a Coffee are voluntary gifts to keep the project running. They don't buy any product, service or special access, and the map stays free for everyone.

Changes and contact

We may update these terms; the date at the top will change when we do. They are governed by the laws of the Commonwealth of Pennsylvania. Questions, and requests for permission, go to contact@sealevelmap.io.