( ( ( ( the ( increasing vulnerability ) ) ( of Canadians ) ) ( to ( global changes ) ) ) ( ( caused ( by ( ( the inter-connection ) ( of ( ( ( ( ( ( ( population growth ) , ) ( environmental degradation ) ) , ) disease ) and ) ( uncontrolled migration ) ) ) ) ) ) ; ) )
(ROOT (S (NP (NP (DT the) (VBG increasing) (NN vulnerability)) (PP (IN of) (NP (NNPS Canadians))) (PP (TO to) (NP (JJ global) (NNS changes)))) (VP (VBD caused) (PP (IN by) (NP (NP (DT the) (NN inter-connection)) (PP (IN of) (NP (NP (NN population) (NN growth)) (, ,) (NP (JJ environmental) (NN degradation)) (, ,) (NP (NN disease)) (CC and) (NP (JJ uncontrolled) (NN migration))))))) (: ;)))
the increasing vulnerability of Canadians to global changes caused by the inter-connection of population growth, environmental degradation, disease and uncontrolled migration;
(ROOT (S (NP (NP (DT A) (NN change)) (PP (IN of) (NP (NP (NN season)) (CC and) (NP (JJR less) (NN food))))) (ADVP (RB usually)) (VP (VB cause) (S (NP (JJ certain) (NNS animals)) (VP (TO to) (VP (VB migrate))))) (. .)))
A change of season and less food usually cause certain animals to migrate.