(S (BASENP (NNP Odum)) (VP (VBZ believes) (SBAR (IN that) (S (S (NP (BASENP (DT the) (NN climate)) (PP (IN in) (BASENP (DT the) (NN arctic)))) (VP (MD will) (VP (VB make) (S (BASENP (DT any) (NN spill)) (ADJP (JJR easier) (S (VP (TO to) (VP (VB clean) (PRT (RP up)))))))))) (SBAR (IN because) (COMMA ,) (QT (DQL ``) (QTC (S (BASENP (NNP Arctic) (NNS conditions)) (VP (VBP create) (NP (BASENP (NNS differences)) (PP (IN in) (S (VP (VBG responding) (PP (TO to) (NP (BASENP (NN oil)) (PP (IN in) (BASENP (ADJP (JJ cold) (CC and) (JJ ice)) (NNS conditions))))))))))) (PERIOD .)) (DQR '')))))))