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    <p>Hello all,</p>
    <p>regarding vertical plants,<br>
      some examples against air pollution came to my mind.<br>
      it's not really "farming", but at least an "artificial" way to
      grow plants,<br>
      so it doesn't really fit with "natural"
      <a class="moz-txt-link-freetext" href="http://wiki.openstreetmap.org/wiki/Key:natural">http://wiki.openstreetmap.org/wiki/Key:natural</a><br>
    </p>
    <p>Do you think this should be considered ?</p>
    <p>I could imagine to extend this tag for it :<br>
      <a class="moz-txt-link-freetext" href="http://wiki.openstreetmap.org/wiki/Tag:landuse%3Dvillage_green">http://wiki.openstreetmap.org/wiki/Tag:landuse%3Dvillage_green</a><br>
      Something like this ? :<br>
      landuse=village_green<br>
      landuse:type=vertical<br>
      landuse:horticulture=lichen,moss</p>
    <p>Existing keys :<br>
      <a class="moz-txt-link-freetext" href="http://wiki.openstreetmap.org/wiki/Key:plant_community">http://wiki.openstreetmap.org/wiki/Key:plant_community</a><br>
      <a class="moz-txt-link-freetext" href="http://wiki.openstreetmap.org/wiki/Key:trees">http://wiki.openstreetmap.org/wiki/Key:trees</a><br>
    </p>
    <p>In the press :<br>
<a class="moz-txt-link-freetext" href="http://www.nytimes.com/2012/04/10/world/americas/vertical-gardens-in-mexico-a-symbol-of-progress.html">http://www.nytimes.com/2012/04/10/world/americas/vertical-gardens-in-mexico-a-symbol-of-progress.html</a><br>
<a class="moz-txt-link-freetext" href="http://www.huffingtonpost.com/toby-nwazor/new-yorks-biggest-ever-gr_1_b_12450500.html">http://www.huffingtonpost.com/toby-nwazor/new-yorks-biggest-ever-gr_1_b_12450500.html</a><br>
<a class="moz-txt-link-freetext" href="http://www.dw.com/en/stuttgart-builds-moss-covered-wall-to-fight-air-pollution/a-37866760">http://www.dw.com/en/stuttgart-builds-moss-covered-wall-to-fight-air-pollution/a-37866760</a><br>
    </p>
    Some more links :<br>
<a class="moz-txt-link-freetext" href="https://www.witpress.com/Secure/elibrary/papers/AIR15/AIR15025FU1.pdf">https://www.witpress.com/Secure/elibrary/papers/AIR15/AIR15025FU1.pdf</a><br>
    <a class="moz-txt-link-freetext" href="http://www.iasp.asp-berlin.de/bilder/poster1302.pdf">http://www.iasp.asp-berlin.de/bilder/poster1302.pdf</a><br>
<a class="moz-txt-link-freetext" href="http://ccap.org/green-walls-living-walls-green-roofs-courtesy-of-epa-pnc">http://ccap.org/green-walls-living-walls-green-roofs-courtesy-of-epa-pnc</a><br>
    <br>
    Selling plant walls :<br>
    <a class="moz-txt-link-freetext" href="http://www.plantsonwalls.com/Default.asp">http://www.plantsonwalls.com/Default.asp</a><br>
    <a class="moz-txt-link-freetext" href="http://plantwalldesign.com/eng/home.html">http://plantwalldesign.com/eng/home.html</a><br>
    <br>
    Cheers,<br>
    Thilo<br>
    <br>
    <div class="moz-cite-prefix">Am 15.03.2017 um 07:32 schrieb Warin:<br>
    </div>
    <blockquote
      cite="mid:1427b13a-bebc-f084-84a7-45ba8aa26708@gmail.com"
      type="cite">
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      <div class="moz-cite-prefix">On 15-Mar-17 05:14 PM, Martin
        Koppenhoefer wrote:<br>
      </div>
      <blockquote
        cite="mid:271D6FDA-A7FA-4414-9D7D-84914AFC73DD@gmail.com"
        type="cite">
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        <div><br>
          <br>
          sent from a phone</div>
        <div><br>
          On 15 Mar 2017, at 04:39, Dave Swarthout <<a
            moz-do-not-send="true" href="mailto:daveswarthout@gmail.com">daveswarthout@gmail.com</a>>
          wrote:<br>
          <br>
        </div>
        <blockquote type="cite">
          <div>I've seen this list run on and on with discussions about
            how to tag wastebins and such but for this one, an arguably
            important future tagging construct, hardly a ripple. And
            members who are usually so vocal about tagging issues are
            strangely quiet.  Martin? Warin? John? Marc? What's up?</div>
        </blockquote>
        <br>
      </blockquote>
      Simple. <br>
      What are you tagging?<br>
      <br>
      The farm? <br>
      landuse=farmland<br>
      produce=?<br>
      <br>
      The factory where the produce is turned into product <br>
      Landuse=industrial<br>
      building=factory<br>
      product=?<br>
      <br>
      The shop where the product is sold <br>
      landuse=commercial<br>
      shop=?<br>
      sells=? <br>
      <br>
      <blockquote
        cite="mid:271D6FDA-A7FA-4414-9D7D-84914AFC73DD@gmail.com"
        type="cite">
        <div><br>
        </div>
        <div>I don't see a big difference between growing grass and
          growing marijuana, similarly corn. At least if it's grown
          outdoors without the help of artificial lighting.</div>
        <div>Have a look at the key crop: <a moz-do-not-send="true"
            href="https://wiki.openstreetmap.org/wiki/Key:crop">https://wiki.openstreetmap.org/wiki/Key:crop</a></div>
        <div>Well, besides that it is quite rare, mostly illegal with
          the exception of some fields operated for the pharmaceutical
          industry (the high THC concentration one). Then there's also
          kind of a comeback of hemp for fibre production (low THC
          concentration, legal in the EU).</div>
        <div><br>
        </div>
        <div>Vertical farming sounds interesting, but isn't something
          I've yet seen in the real. There have been some projects in
          Europe as well, but AFAIK have not been realized, see e.g.
          this one by dutch architects MVRDV:</div>
        <div><a moz-do-not-send="true"
            href="https://www.mvrdv.nl/projects/181-pig-city#/archive">https://www.mvrdv.nl/projects/181-pig-city#/archive</a></div>
        <div><a moz-do-not-send="true"
href="http://www.alternet.org/story/135410/high_rise_farms_the_new_model_for_sustainable_cities">http://www.alternet.org/story/135410/high_rise_farms_the_new_model_for_sustainable_cities</a></div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div>cheers,</div>
        <div>Martin </div>
        <br>
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        <pre wrap="">_______________________________________________
Tagging mailing list
<a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:Tagging@openstreetmap.org">Tagging@openstreetmap.org</a>
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="https://lists.openstreetmap.org/listinfo/tagging">https://lists.openstreetmap.org/listinfo/tagging</a>
</pre>
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      <p><br>
      </p>
      <br>
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      <br>
      <pre wrap="">_______________________________________________
Tagging mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Tagging@openstreetmap.org">Tagging@openstreetmap.org</a>
<a class="moz-txt-link-freetext" href="https://lists.openstreetmap.org/listinfo/tagging">https://lists.openstreetmap.org/listinfo/tagging</a>
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