Yayin da duniya ta yi zafi, tsire-tsire da dabbobi da yawa suna hawan sama don su yi sanyi. Masu kiyayewa suna tsammanin ƙarin wannan yayin da suke yin shirye-shirye don taimakawa tsarin halitta ya dace da duniyar da ke ɗumamawa. Amma wani sabon bincike a Kimiyya ya gano cewa tsire-tsire a arewacin California suna haɓaka wannan yanayin hawan sama a fifita wurare masu ruwa da ƙasa.
Kowane tsire-tsire ba sa motsawa, ba shakka, amma kewayon kewayon nau'in nau'ikan daban daban a cikin yankin da aka yi nazarin ƙasa yana creeping Downhill. Wannan yana nufin ƙarin sabbin iri sun tsiro a ƙasa, kuma ƙarin sabbin tsire-tsire sun sami tushe. Wannan gaskiya ne ba kawai ga tsire-tsire na shekara-shekara ba har ma ga bushes har ma da bishiyoyi.
Wannan yana ƙara wasu kyawawan manyan wrinkles zuwa tsare-tsaren kiyayewa. Misali: Ba koyaushe kyakkyawan zato ba ne cewa kare wuraren da ke kan gangara daga tsire-tsire zai taimaka wajen kare mazauninsu na gaba yayin da yanayi ke canzawa.
Don ƙarin bayani, duba wannan labarin daga KQED, tashar NPR ta San Francisco.