(S (S (S (BASENP (DT The) (JJ global) (JJ land-surface) (NN temperature)) (VP (VBD was) (NP (BASENP (DT the) (JJS warmest)) (PP (IN on) (BASENP (NN record)))))) (COMMA ,) (SBAR (IN while) (S (BASENP (DT the) (JJ ocean-surface) (NN temperature)) (VP (VP (VBD tied) (PP (IN for) (NP (BASENP (RB second) (JJS warmest)) (PP (IN in) (BASENP (DT the) (JJ past) (ADJP (NN 128) (NN year)) (NN period)))))) (COMMA ,) (ADJP (ADJP (BASENP (QP (RB approximately) (NN 0.06)) (NP (BASENP (NNS degrees)) (ADJP (JJ C)))) (JJR cooler)) (PP (IN than) (NP (BASENP (DT the) (NN record)) (VP (VBN established) (PP (IN during) (NP (BASENP (DT the) (JJ strong) (FW El) (FW Niño) (NN episode)) (PP (IN of) (BASENP (NN 1997-1998))))))))))))) (PERIOD .))