( ( ( Thermal pollution ) ( from ( ( hot ( water discharge ) ) ( from ( industrial areas ) ) ) ) ) ( ( ( ( is ( ( an ( additional threat ) ) ( to ( reef species ) ) ) ) , ) ( as ( ( many ( of them ) ) ( ( can not ) ( ( withstand ( sudden ( and ( drastic increases ) ) ) ) ( in temperature ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Thermal) (NN pollution)) (PP (IN from) (NP (NP (JJ hot) (NN water) (NN discharge)) (PP (IN from) (NP (JJ industrial) (NNS areas)))))) (VP (VBZ is) (NP (NP (DT an) (JJ additional) (NN threat)) (PP (TO to) (NP (NN reef) (NNS species)))) (, ,) (SBAR (IN as) (S (NP (NP (JJ many)) (PP (IN of) (NP (PRP them)))) (VP (MD can) (RB not) (VP (VB withstand) (NP (JJ sudden) (CC and) (JJ drastic) (NNS increases)) (PP (IN in) (NP (NN temperature)))))))) (. .)))
Thermal pollution from hot water discharge from industrial areas is an additional threat to reef species, as many of them cannot withstand sudden and drastic increases in temperature.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (NP (DT the) (NN temperature)) (PP (IN of) (NP (NN water)))) (VP (VBZ is) (VP (VBN increased) (PP (IN after) (S (VP (VBG being) (VP (VBN used) (PP (IN in) (S (VP (VBG cooling)))))))))))) (, ,) (NP (PRP it)) (VP (VBZ is) (NP (JJ thermal) (NN pollution))) (. .)))
When the temperature of water is increased after being used in cooling, it is thermal pollution.