( ( ( ( ( We ( still ( have ( ( ( ( pollution , ) ( ( the destruction ) ( of habitat ) ) ) and ) ( ( other forms ) ( of ( environmental degradation ) ) ) ) ) ) ) , ) but ) ( ( most people ) ( agree ( this ( has ( to stop ) ) ) ) ) ) . )
(ROOT (S (S (NP (PRP We)) (ADVP (RB still)) (VP (VBP have) (NP (NP (NN pollution)) (, ,) (NP (NP (DT the) (NN destruction)) (PP (IN of) (NP (NN habitat)))) (CC and) (NP (NP (JJ other) (NNS forms)) (PP (IN of) (NP (JJ environmental) (NN degradation))))))) (, ,) (CC but) (S (NP (JJS most) (NNS people)) (VP (VBP agree) (SBAR (S (NP (DT this)) (VP (VBZ has) (S (VP (TO to) (VP (VB stop))))))))) (. .)))
We still have pollution, the destruction of habitat and other forms of environmental degradation, but most people agree this has to stop.
(ROOT (S (NP (NNS People)) (VP (VBD stopped) (S (VP (VBG adding) (NP (NN lead)) (PP (TO to) (NP (NP (NN gasoline)) (PP (RB because) (IN of) (NP (JJ environmental) (NN pollution)))))))) (. .)))