#DYK USPS has a large fleet of feet? Nearly 7,000 letter carriers deliver mail entirely on foot. This zero emissions delivery mode reduces congestion in cities. #EarthDay50 #USPSGreenerThanYouThinkpic.twitter.com/WQUMuOqKnQ

USPS has a large fleet of feet? Nearly 7,000 letter carriers deliver mail entirely on foot. This zero emissions delivery mode reduces congestion in cities.

from https://youtu.be/GuUaaPaTlyY
April 28, 2020 at 11:27AM