( But ( ( climate scientists ) ( ( have ( seen ( ( no trend ) ( involving ( ( an increase ) ( in ( ( the ( ( number or ) severity ) ) ( of ( ( ( ( ( ( hurricanes , ) tornadoes ) , ) ( big floods ) ) or ) ( wind storms ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (CC But) (NP (NN climate) (NNS scientists)) (VP (VBP have) (VP (VBN seen) (NP (NP (DT no) (NN trend)) (PP (VBG involving) (NP (NP (DT an) (NN increase)) (PP (IN in) (NP (NP (DT the) (NN number) (CC or) (NN severity)) (PP (IN of) (NP (NP (NNS hurricanes)) (, ,) (NP (NNS tornadoes)) (, ,) (NP (JJ big) (NNS floods)) (CC or) (NP (NN wind) (NNS storms))))))))))) (. .)))
But climate scientists have seen no trend involving an increase in the number or severity of hurricanes, tornadoes, big floods or wind storms.
(ROOT (S (NP (DT Both) (NNS hurricanes) (CC and) (NNS tornadoes)) (ADVP (RB always)) (VP (VBP have) (NP (JJ high) (NNS winds))) (. .)))