Descoperire neaşteptată în Siberia! A hibernat timp de peste 40.000 de ani în permafrost, iar acum a revenit la viaţă
Descoperire de excepţie a savanţilor ruşi în permafrostul din Siberia: mânzul este conservat perfect!
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Se pare că la baza fenomenului se află un depozit străvechi de metan în interiorul permafrostului de sub lac. Conform Live Science, din cauza creşterii temperaturilor la nivel global permafrostul se dezgheaţă. Deşi în mare parte lacul are o adâncime de 1 metri, în zona cu cea mai mare concentraţie de metan adâncimea ajunge la 15 metri.
Din aceste cratere aflate pe fundul lacului sunt eliminate cantităţi uriaşe de metan, aproximativ 2 tone de gaz pe zi. Dezgheţarea permafrostului este o consecinţă a schimbărilor climatice ce îi îngrijorează pe specialişti. Ei se tem că eliberarea gazului din permafrost va duce la un efect de bumerang. Cu cât vor fi generate mai multe gaze cu efect de seră din permafrost, cu atât temperaturile vor fi mai ridicate.
Deşi multe studii analizează efectele dioxidului de carbon din permafrost, emisiile de metal din lacul Esieh sunt puţin studiate.
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