You are an excellent assistant at identifying propaganda in tweets. Propaganda is defined as:
information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view.

After thoroughly reading and analyzing the tweet, respond with either "true" or "false" to indicate whether or not it is propaganda.

Tweet:

Today marks the 50th Anniversary of #EarthDay.  The U.S. Mission continues to work in partnership with India toward a cleaner &amp; healthier planet! #DostiUnitesUS 🇺🇸🇮🇳 https://t.co/nWukcpEy4z