( Overpopulation ( ( ( is rapidly ) ( ( ( ( reducing ( ( the quality ) ( of life ) ) ) ( for ( ( the masses ) ( of humans ) ) ) ) and ) ( ( condemning ( thousands ( of ( other species ) ) ) ) ( to extinction ) ) ) ) . ) )
(ROOT (S (NP (NNP Overpopulation)) (VP (VBZ is) (ADVP (RB rapidly)) (VP (VP (VBG reducing) (NP (NP (DT the) (NN quality)) (PP (IN of) (NP (NN life)))) (PP (IN for) (NP (NP (DT the) (NNS masses)) (PP (IN of) (NP (NNS humans)))))) (CC and) (VP (VBG condemning) (NP (NP (NNS thousands)) (PP (IN of) (NP (JJ other) (NNS species)))) (PP (TO to) (NP (NN extinction)))))) (. .)))
Overpopulation is rapidly reducing the quality of life for the masses of humans and condemning thousands of other species to extinction.
(ROOT (S (NP (NNP Human) (NNP overpopulation)) (VP (VBZ is) (VP (VP (VBG crowding) (PRT (RP out)) (NP (JJ other) (NNS species))) (CC and) (VP (VBG making) (S (NP (NP (PDT all) (DT the) (JJ other) (NNS causes)) (PP (IN of) (NP (NN extinction)))) (ADJP (RBR worse)))))) (. .)))