(S (S (NP (BASENP (DT The) (NN report)) (PRN (COMMA ,) (VP (VBN backed) (PP (IN by) (NP (BASENP (DT the) (NNP United) (NNPS Nations)) (CC and) (BASENP (NN farm) (NN research) (NNS groups))))) (COMMA ,))) (VP (VBZ shows) (SBAR (IN that) (S (ADVP (RB globally)) (COMMA ,) (S (BASENP (NN water) (NN usage)) (VP (VP (VBD had) (VP (VP (VBN increased) (PP (IN by) (BASENP (NN six) (NNS times)))) (PP (IN in) (BASENP (DT the) (JJ past) (NN 100) (NNS years))))) (CC and) (VP (MD would) (VP (VP (VP (VB double) (ADVP (RB again))) (PP (IN by) (BASENP (NN 2050)))) (COLON -) (S (VP (VP (VBN driven) (PP (ADVP (RB mainly)) (PP (IN by) (BASENP (NN irrigation) (CC and) (NNS demands))))) (PP (IN by) (BASENP (NN agriculture))))))))))))) (PERIOD .))