[Tagging] Mapping deforestation

[marc marc]

Le 11.03.19 à 21:36, Mateusz Konieczny a écrit :
> Mar 11, 2019, 8:58 PM by marc_marc_irc at hotmail.com:
> 
>     Le 11.03.19 à 19:27, Christoph Hormann a écrit :
> 
>         we map positively what verifiably exists
> 
> 
>     with different imagery, it is possible to verify:
>     - that an old one shows trees: old:landcover=trees
>     - that a more recent one shows no trees. landcover=xyz landuse=farmland
> 
> We do not map what was in the past and disappeared.

who is we ? check taginfo for ex 288k old_name or some lifecycle prefix
if some users keep old name, I see no issue to keep the old cover in 
addition to the new one.