( ( As well ) ( , ( ( ( ( population explosion ) and ) ( industrial progress ) ) ( ( have ( caused ( ( ( serious ( global ( environmental problems ) ) ) , ) ( such ( as ( ( ( ( ( ( ( ( deforestation ( , ( air ( and ( water pollution ) ) ) ) ) , ) ( global warming ) ) , ) ( acid rain ) ) , ) and ) ( destruction ( of ( the ( ozone layer ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB As) (RB well)) (, ,) (NP (NP (NN population) (NN explosion)) (CC and) (NP (JJ industrial) (NN progress))) (VP (VBP have) (VP (VBN caused) (NP (NP (JJ serious) (JJ global) (JJ environmental) (NNS problems)) (, ,) (PP (JJ such) (IN as) (NP (NP (NN deforestation) (, ,) (NN air) (CC and) (NN water) (NN pollution)) (, ,) (NP (JJ global) (NN warming)) (, ,) (NP (JJ acid) (NN rain)) (, ,) (CC and) (NP (NP (NN destruction)) (PP (IN of) (NP (DT the) (NN ozone) (NN layer))))))))) (. .)))
As well, population explosion and industrial progress have caused serious global environmental problems, such as deforestation, air and water pollution, global warming, acid rain, and destruction of the ozone layer.
(ROOT (S (NP (NNP Air) (NN pollution)) (VP (VBZ causes) (NP (NP (JJ acid) (NN rain)) (, ,) (NP (NN ozone) (NN depletion)) (, ,) (CC and) (NP (JJ global) (NN warming)))) (. .)))