( ( The model ) ( ( has ( been ( run ( to ( ( ( explore ( ( the ( relative importance ) ) ( of ( ( ( physiological and ) radiative ) feedbacks ) ) ) ) ( on ( changes ( in ( the ( mid-continental climates ) ) ) ) ) ) ( under ( 2 ( x ( CO2 conditions ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN model)) (VP (VBZ has) (VP (VBN been) (VP (VBN run) (S (VP (TO to) (VP (VB explore) (NP (NP (DT the) (JJ relative) (NN importance)) (PP (IN of) (NP (ADJP (JJ physiological) (CC and) (JJ radiative)) (NNS feedbacks)))) (PP (IN on) (NP (NP (NNS changes)) (PP (IN in) (NP (DT the) (JJ mid-continental) (NNS climates))))) (PP (IN under) (NP (CD 2) (NNP x) (NNP CO2) (NNS conditions))))))))) (. .)))
The model has been run to explore the relative importance of physiological and radiative feedbacks on changes in the mid-continental climates under 2 x CO2 conditions.
(ROOT (S (NP (JJ Positive) (NN feedback)) (VP (VP (VBZ intensifies) (NP (NP (DT a) (NN change)) (PP (IN in) (NP (NP (DT the) (NN body) (POS 's)) (JJ physiological) (NN condition))))) (CONJP (RB rather) (IN than)) (VP (VBG reversing) (NP (PRP it)))) (. .)))