Humboldt County ... Arcata is located in Humboldt County. The county had a population of 134,623 people at the 2010 Census. With it's population of 17,231 people, Arcata represented 12.8% of the county's total.
Here's a chart that shows what day Earth Day is celebrated from 2014 - 2021. Earth Day is celebrated around the world on April 22. Some cities start celebrating a week in advance, ending the recognition of Earth Week on April 22nd. Others host month long events to stress the importance of teaching about our environment. The United Nations celebrates Earth Day each year on the March equinox, which is often March 20, a tradition which was founded by peace activist John McConnell in 1969.
Five Methods:Getting EngagedCaring for Trees, Plants and AnimalsEating Earth-Friendly FoodReducing WasteSaving Energy and WaterCommunity Q&A. The celebration of Earth Day is on April 22nd and it began 1970. It has grown into a global event recognized by over 192 countries. Devoting special a day to helping for the earth is a way to demonstrate how much we care about the future of our planet.