cob<p>La fonte du <a href="https://mastodon.social/tags/permafrost" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>permafrost</span></a> présente-t-elle un <a href="https://mastodon.social/tags/risque" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>risque</span></a> sanitaire ?</p><p>permafrost = <a href="https://mastodon.social/tags/pergelisol" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>pergelisol</span></a> = sols dont la <a href="https://mastodon.social/tags/temperature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>temperature</span></a> est < 0° C pendant > 2 ans, leur permettant de fait d'être impérméables.</p><p>1/2</p><p>La surface de la <a href="https://mastodon.social/tags/Terre" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Terre</span></a> en est recouverte à près de 20%.</p><p>-> bouleversement/réchauffement climatique de certaines régions du globe -> fonte du permafrost = libération des micro-organismes jusque-là emprisonnés dans la <a href="https://mastodon.social/tags/glace" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>glace</span></a>.</p><p>2016 en <a href="https://mastodon.social/tags/Siberie" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Siberie</span></a> : <a href="https://mastodon.social/@cobrate/113618472496022727" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">mastodon.social/@cobrate/11361</span><span class="invisible">8472496022727</span></a></p><p><a href="https://mastodon.social/tags/sante" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>sante</span></a> <a href="https://mastodon.social/tags/climat" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>climat</span></a> <a href="https://mastodon.social/tags/zoonose" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>zoonose</span></a></p>