(S (S (BASENP (PRP He)) (VP (VBZ says) (SBAR (S (S (BASENP (PRP he)) (VP (VBD considered) (S (S (BASENP (PRP it)) (ADJP (JJ feasible))) (SBAR (IN if) (S (NP (BASENP (DT the) (NN rest)) (PP (IN of) (BASENP (DT the) (NN world)))) (VP (VBN acted) (ADVP (RB too)))))))) (COMMA ,) (S (ADVP (RB otherwise)) (S (S (VP (TO to) (VP (VB introduce) (BASENP (NN carbon) (NN trading) (NNS plans))))) (VP (MD would) (VP (VB risk) (BASENP (JJ Australian) (NNS industries)))))))))) (PERIOD .))