SimilarityRank
global_problem 0.806 66690
global_issue 0.740 34072
environmental_challenge 0.726 68452
global_development 0.649 48246
environmental_problem 0.649 25380
these_challenge 0.644 16957
common_challenge 0.623 99524
global_crisis 0.620 50850
current_challenge 0.617 50315
the_global_community 0.613 27368
future_challenge 0.610 41206
the_challenge_pose_by 0.608 96527
challenge_we_face 0.606 47011
global_society 0.605 84854
security_challenge 0.603 64605
sustainability_issue 0.603 67594
global_environment 0.602 57161
complex_problem 0.599 48012
find_solution_to 0.593 66121
global_climate_change 0.593 29854
that_we_face 0.592 59337
economic_challenge 0.591 92616
environmental_crisis 0.590 74211
sustainable_solution 0.589 67100
global_change 0.588 38598