Slitherine

the plural of watercraft and aircraft is watercraft and aircraft, not "watercrafts" and "aircrafts".

the graphic for "improve ecoregion" and "worsen ecoregion" are identical, and both have the
arrow pointed down. I think the "improve ecoregion" should have the arrow facing up.
pedantically, "worsen ecoregion" should probably be "degrade ecoregion".

Trivial issues, but trivial to correct.