Global is a synonym of Worldwide. Worldwide is related to Web. Web is a type of Weave. Weave is a type of Travel. 
Environmental is related to Green. Green is similar to Ill. Ill is the opposite of Ok. Ok is related to Farm. 
Global <--Synonym--> Worldwide <--RelatedTo--> Web --IsA--> Weave --IsA--> Travel 
Environmental <--RelatedTo--> Green <--SimilarTo--> Ill <--Antonym--> Ok <--RelatedTo--> Farm 