Project is related to Improvement. Conservation is a type of Improvement. Conservation is the opposite of Spending. Spending is related to Budget. 
Limited is the opposite of Widespread. Widespread is a synonym of Universal. 
Project <--RelatedTo--> Improvement <--IsA-- Conservation <--Antonym--> Spending <--RelatedTo--> Budget 
Limited <--Antonym--> Widespread <--Synonym--> Universal 