The government devised and implemented a new environmental protection policy.

This policy is necessary to revitalize the local economy.

My activity has been declining recently.

In my area, a summer festival is held every year.

Your cooperation is needed for this project.

I need you.

He is an expert in economics.

He has the ability to change into a wolf.

He thinks that war is a necessary evil.

Do you understand the necessity of this project?