Deletion of List of environment topics

Comment: the main page and maybe '''merge''' at least some of the rest into a more manageable number of pages. Some letters (e.g. X, Y, Z) only have a few entries, and each page unnecessarily duplicates a large opening section. Other than that it serves as a "''structured list to assist with the organisation of articles''", which #LINK explicitly allows. See also 
Stance: keep
Cited policy: Wikipedia:What Wikipedia is not (WP:NOT||WP:LIST)