( ( With ( the ( increasing altitude ) ) ) ( , ( temperatures ( ( may ( be colder ) ) . ) ) ) )
(ROOT (S (PP (IN With) (NP (DT the) (VBG increasing) (NN altitude))) (, ,) (NP (NNS temperatures)) (VP (MD may) (VP (VB be) (NP (JJR colder)))) (. .)))
With the increasing altitude, temperatures may be colder.
(ROOT (S (PP (IN As) (NP (NN altitude) (NNS rises))) (, ,) (NP (DT the) (NN temperature)) (VP (VBZ increases) (PP (IN in) (NP (DT the) (NN thermosphere)))) (. .)))