Ayyukan yanayi(ko aikin sauyin yanayi) yana nufin ayyuka da yawa, dabaru, na'urorin siyasa da sauransu waɗanda ke da nufin rage tsananin canjin yanayi da ɗan adam ke haifar da tasirinsa. "Ƙarin aikin sauyin yanayi" shine babban buƙatar motsin yanayi. Rashin aikin yanayi shine rashin aikin sauyin yanayi. Misalan ayyukan yanayi sun haɗada:
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