When I was in school, we were taught about deforestation, global warming, greenhouse gasses and the like.
Loko ku ri hi ku wa ha ri exikolweni, a swi kanakanisi leswaku u tshame u twa ku vulavuriwa hi nthyakiso, mahiselo ya misava, ku tsemeleriwa ka makhwati ni swiphiqo leswi yelanaka na sweswo.