( ( ( The ( increased awareness ) ) ( of ( ( the ( environmental consequences ) ) ( of ( acidic precipitation ) ) ) ) ) ( ( has ( ( resulted ( in ( ( many ( recent measurements ) ) ( of ( ( both ( the sources ) ) ( of sulfur ) ) ) ) ) ) ( to ( ( ( the atmosphere ) and ) ( ( the processes ) ( ( involved ( in ( ( the cycling ) ( of sulfur ) ) ) ) ( through ( the atmosphere ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (VBN increased) (NN awareness)) (PP (IN of) (NP (NP (DT the) (JJ environmental) (NNS consequences)) (PP (IN of) (NP (JJ acidic) (NN precipitation)))))) (VP (VBZ has) (VP (VBN resulted) (PP (IN in) (NP (NP (JJ many) (JJ recent) (NNS measurements)) (PP (IN of) (NP (NP (PDT both) (DT the) (NNS sources)) (PP (IN of) (NP (NN sulfur))))))) (PP (TO to) (NP (NP (DT the) (NN atmosphere)) (CC and) (NP (NP (DT the) (NNS processes)) (VP (VBN involved) (PP (IN in) (NP (NP (DT the) (NN cycling)) (PP (IN of) (NP (NN sulfur))))) (PP (IN through) (NP (DT the) (NN atmosphere))))))))) (. .)))
The increased awareness of the environmental consequences of acidic precipitation has resulted in many recent measurements of  both the sources of sulfur to the atmosphere and the processes involved in the cycling of sulfur through the atmosphere.
(ROOT (S (NP (DT The) (NN atmosphere)) (VP (VBZ is) (NP (NP (DT the) (NN source)) (PP (IN of) (NP (NN precipitation))))) (. .)))