An official website of the United States Government Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Ecosystem services include spiritual and recreational benefits humans receive from interacting with nature, such as hiking the Pacific Crest Trail.

U.S. Department of State

The Lessons of 1989: Freedom and Our Future