Mamwe masayendisiti anoti mhepo yepasi repwere yaive nemagasi anokonzera greenhouse (akadai se carbon dioxide, methane) akawanda kupfuura aripo nhasi, ayo akabata kupisa kwakakwana kuti abhadhare huwandu hushoma hwesimba rezuva rinosvika pariri. Zvisinei, kuongororwa kwemasese eArchaean kunoratidzika kunge kwakapesana neyakaenzana neyakaenzana yezuva rezuva, uye nekudaro hupenyu hwaisafanirwa kunge hwave kugona kukura. Zvisinei, zvinyorwa zve geological zvinoratidza kuti Pasi rakagara riri patembiricha yakadzikama munhoroondo yaro yese, uye kuti Nyika mudiki yaive inodziya zvishoma kupfuura zvazviri nhasi. Imwe dzidziso pakati pevasayendisiti ndeyekuti mhepo yepasi repwere yaive nemakumi mashanu muzana emagasi anokonzera greenhouse (akadai sekabhoni dhayokisaidhi, methane) kupfuura aripo nhasi, ayo akabata kupisa kwakakwana kuti abhadhare huwandu hushoma hwesimba rezuva rinosvika pariri. Zvisinei, kuongororwa kwemasese eArchaean kunoratidzika kunge kwakaenzana neyakaenzana
Makore 3.8 kusvika ku2.5 bhiriyoni apfuura