( ( Climate change ) ( ( ( is ( ( the result ) ( of ( human actions ) ) ) ) ( through ( ( the ( increased concentration ) ) ( of ( ( greenhouse gases ) ( in ( ( ( the atmosphere ) , ) ( ( of which ) ( ( carbon dioxide ) ( is ( the ( most prominent ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NN Climate) (NN change)) (VP (VBZ is) (NP (NP (DT the) (NN result)) (PP (IN of) (NP (JJ human) (NNS actions)))) (PP (IN through) (NP (NP (DT the) (VBN increased) (NN concentration)) (PP (IN of) (NP (NP (NN greenhouse) (NNS gases)) (PP (IN in) (NP (NP (DT the) (NN atmosphere)) (, ,) (SBAR (WHPP (IN of) (WHNP (WDT which))) (S (NP (NN carbon) (NN dioxide)) (VP (VBZ is) (NP (DT the) (RBS most) (JJ prominent)))))))))))) (. .)))
Climate change is the result of human actions through the increased concentration of greenhouse gases in the atmosphere, of which carbon dioxide is the most prominent.
(ROOT (S (NP (NNP Human) (NNS actions)) (VP (VBZ has) (VP (VBN increased) (NP (DT the) (NN greenhouse) (NN effect)))) (. .)))