> A Native American tribe recognized by the United States government possesses tribal sovereignty, a "dependent sovereign nation" status with the Federal Government that is similar to that of a state in some situations, and that of a nation in others, holding a government-to-government relationship with the Federal government of the United States.
The Ute Mountain Ute Tribe referenced in the article is one such Federally recognized tribe.
Similar workflow here. On iOS I use Keepassium, which can access files on Dropbox, so it can read and write to the master password file there, which then propagates to the other machines with Dropbox installed.
This site provides access to lidar point clouds (and DEMs, etc) collected by many agencies.
Additional lidar data is often available from individual state agencies, which is sometimes not aggregated into the national-scale services. A good search term is "[state abbreviation] gis" for the state of interest.
AFAIK, OpenTopography merely aggregates the data available at the above sources and similar. Unfortunately, OpenTopography has relatively restrictive access terms (e.g., free access only for those with .edu addresses), even though the same data accessed directly from USGS or other federal agencies has no such restrictions.
I don't know what your source is for the 2 ft number, as any predictions of future sea level are dependent on emissions scenarios. Further, sea level is local--that is, different areas of the world will experience different amounts of local sea-level rise in the future, based on regional conditions.
In south Florida, the estimated sea-level rise for the intermediate-high emissions scenario is approximately 5.5 feet by 2100. Attaining 2 feet of SLR requires an intermediate-low scenario. The high scenario results in 7 feet.
I have visited wastewater treatment plants in two of the cities I have lived in and I honestly think such a visit should be required for everyone--young and old--who lives in a house or apartment serviced by a municipal sewer. It is eye opening to see what happens to every drop of water you flush or wash down the drain, and especially to see what kinds of things make it into the wastewater stream and to the treatment plant. The tours are often run by folks who actually work (or have worked) at the plant as operators and are quite knowledgeable at all the processes in play.
The Ute Mountain Ute Tribe referenced in the article is one such Federally recognized tribe.
https://en.wikipedia.org/wiki/Tribe_(Native_American) https://www.bia.gov/service/tribal-leaders-directory