( ( By 2010 ) ( , ( China ( ( will ( ( introduce ( as ( ( much ( carbon dioxide ) ) ( in ( the atmosphere ) ) ) ) ) ( as ( ( the ( entire world ) ) ( does today ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN By) (NP (CD 2010))) (, ,) (NP (NNP China)) (VP (MD will) (VP (VB introduce) (PP (IN as) (NP (NP (JJ much) (NN carbon) (NN dioxide)) (PP (IN in) (NP (DT the) (NN atmosphere))))) (SBAR (IN as) (S (NP (DT the) (JJ entire) (NN world)) (VP (VBZ does) (NP (NN today))))))) (. .)))
By 2010, China will introduce as much carbon dioxide in the atmosphere as the entire world does today.
(ROOT (S (PP (IN During) (NP (DT the) (JJ early) (NN paleozoic))) (, ,) (NP (NP (DT the) (NN amount)) (PP (IN of) (NP (NP (NN carbon) (NN dioxide)) (PP (IN in) (NP (DT the) (NN atmosphere)))))) (VP (VBD was) (ADJP (RB much) (JJR greater)) (PP (VBN compared) (PP (TO to) (NP (NN today))))) (. .)))