I ka wā Holocene, ke piʻi nei ka noi no nā mīkini kaumaha i nā ʻoihana like ʻole, e komo pū me ke kūkulu ʻana, agribusiness, a me ka mining. Loaʻa iā ia ka diode māmā e hoʻonui i ka pono no ke ala ʻōpala paʻa a maikaʻi hoʻi ma ka tractor, excavator, backhoe, a me ke ala stevedore. Ua sw ka manaʻo
Heluhelu hou aku