( ( ( ( ( Fossil ( fuel burning ) ) ( now ( ( ( accounts ( for ( ( about two-thirds ) ( of ( sulfur emissions ) ) ) ) ) ( to ( the atmosphere ) ) ) globally ) ) ) and ) ( ( this proportion ) ( is ( projected ( to ( increase ( as ( ( energy demands ) ( ( ( increase , ) particularly ) ( in Asia ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (JJ Fossil) (NN fuel) (NN burning)) (ADVP (RB now)) (VP (VBZ accounts) (PP (IN for) (NP (NP (QP (RB about) (NNS two-thirds))) (PP (IN of) (NP (NN sulfur) (NNS emissions))))) (PP (TO to) (NP (DT the) (NN atmosphere))) (ADVP (RB globally)))) (CC and) (S (NP (DT this) (NN proportion)) (VP (VBZ is) (VP (VBN projected) (S (VP (TO to) (VP (VB increase) (SBAR (IN as) (S (NP (NN energy) (NNS demands)) (VP (VBP increase) (, ,) (ADVP (RB particularly)) (PP (IN in) (NP (NNP Asia)))))))))))) (. .)))
Fossil fuel burning now accounts for about two-thirds of sulfur emissions to the atmosphere globally and this proportion is projected to increase as energy demands increase, particularly in Asia.
(ROOT (S (NP (DT The) (NN element) (NN sulfur)) (VP (VBZ is) (VP (VBN released) (PP (IN into) (NP (DT the) (NN atmosphere))) (PP (IN by) (NP (NP (DT the) (NN burning)) (PP (IN of) (NP (JJ fossil) (NNS fuels))))))) (. .)))