Does '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).' stand independently of the premise 'All of the emission categories experienced a downturn except for one.', neither following nor contradicting it?
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).###All of the emission categories experienced a downturn except for one.