Sisitemu y'Isi y'ubwirinzi

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Sisitemu y’umubiri ni icyifuzo kitavugwaho rumwe, bivugwa ko ari ingaruka za hypothesis ya Gaia . Igitekerezo cya Gaia kivuga ko isi yose ishobora gufatwa nkibinyabuzima kimwe (Gaia). Nk'ibinyabuzima byigenga, Isi yaba ifite sisitemu y'umubiri runaka kugira ngo ibungabunge ubuzima bwayo.
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Bamwe mu bashyigikiye iki gitekerezo cy’ibihimbano, nk'urugero, bemeza ko abantu bashobora gufatwa nk '" ubwandu " bwa Gaia, kandi ko SIDA ari igerageza ry’ubu buryo bwo kwirinda indwara. " Kanseri " ishobora kuba ijambo risobanutse neza, kuko abantu bahindutse muri Gaia, kandi ntabwo ari abateye hanze. Ibinyuranye ni uko abantu ari ubudahangarwa bw'umubiri wa Gaia ubwabwo, wenda byahindutse kugira ngo birinde amakuba azaza nka Permian na Cretaceous kuzimangana kw'ibinyabuzima.

Igitabo cya James Lovelock " Kwihorera kwa Gaia " cyerekana ko Gaia ifite uburyo bwinshi bwo gukuraho umuco wangiza bitewe n’ibyuka bihumanya ikirere hamwe n’ubushyuhe bukabije bw’isi, ariko byerekana ko hamwe n’ubushyuhe bwiyongera buturuka ku zuba, ubushobozi bwa Gaia bwo "gusubira inyuma" nkuko byagenze nyuma yibyabaye bya Permiya na Cretaceous, birashobora guhungabana.
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Paul Hawken atanga igitekerezo muri Blessed Unrest ko iyo Isi ifatwa nk'ubuzima  sisitemu y’umubiri y’isi igizwe na miliyoni cyangwa imiryango hafi ya yose ku isi ikorera mu butabera, ibidukikije, n’uburenganzira bw’abasangwabutaka. Amenshi muri ayo matsinda ahujwe binyuze kuri interineti nubundi buryo kuburyo hariho urusobe runini rwabantu bahujwe nitsinda rikora kurinda isi, abantu bayo, nibiremwa byose. Kurugero, umuryango umwe ukora kugirango uhuze amatsinda akora ku mbaraga zirambye ni Inforse muri Danimarike. 

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