Although all four categories of emissions are down substantially, they only achieve 50-75% of the proposed cap by 2007 (shown as the dotted horizontal line in each of the above figures).
( ( Although ( ( ( all ( four categories ) ) ( of emissions ) ) ( ( are down ) substantially ) ) ) ( , ( they ( only ( ( achieve ( ( 50-75 % ) ( of ( ( ( the ( proposed cap ) ) ( by 2007 ) ) ( -LRB- ( ( shown ( as ( ( the ( dotted ( horizontal line ) ) ) ( in ( each ( of ( the ( above figures ) ) ) ) ) ) ) ) -RRB- ) ) ) ) ) ) . ) ) ) ) )
(ROOT (S (SBAR (IN Although) (S (NP (NP (DT all) (CD four) (NNS categories)) (PP (IN of) (NP (NNS emissions)))) (VP (VBP are) (ADVP (RB down)) (ADVP (RB substantially))))) (, ,) (NP (PRP they)) (ADVP (RB only)) (VP (VBP achieve) (NP (NP (CD 50-75) (NN %)) (PP (IN of) (NP (NP (NP (DT the) (VBN proposed) (NN cap)) (PP (IN by) (NP (CD 2007)))) (PRN (-LRB- -LRB-) (VP (VBN shown) (PP (IN as) (NP (NP (DT the) (JJ dotted) (JJ horizontal) (NN line)) (PP (IN in) (NP (NP (DT each)) (PP (IN of) (NP (DT the) (JJ above) (NNS figures)))))))) (-RRB- -RRB-)))))) (. .)))
The downturn in the emission categories simply isn't enough in our estimation.
( ( ( The downturn ) ( in ( the ( emission categories ) ) ) ) ( simply ( ( ( is n't ) ( enough ( in ( our estimation ) ) ) ) . ) ) )
(ROOT (S (NP (NP (DT The) (NN downturn)) (PP (IN in) (NP (DT the) (NN emission) (NNS categories)))) (ADVP (RB simply)) (VP (VBZ is) (RB n't) (ADJP (JJ enough) (PP (IN in) (NP (PRP$ our) (NN estimation))))) (. .)))