This is the map of the 235 global water basins. For compatibility with the other map data frames it refers to the basins as 'regions'. Thus, any GCAM data with a 'basin' column will need to have a 'region' column added. There is also some variability in how the basin names are represented, so this data set will need some work.
Simple feature collection
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.