Waste-Reduction & Resource Awareness Program (WRRAP)

Funded by Associated Students


sustainability at HSU

Bi-monthly Earth Tub Tours

WHEN: 2nd Thurs & Fri of each Month

WHERE: Meet outside the College Creek Marketplace

TIME: 4:15pm 

Contact wrrap@humboldt.edu for more information and to schedule a class/club/individual tour to see the Earth Tub in person!


Welcome to the Compost Squad

The Compost Squad is a student run team that collects food and green waste on campus to turn it into a rich soil supplement. Diverting 500lbs per week, the students are busy with year round collections and production.

plant waste + food waste + moisture + warmth + air + micro-organisms + time = compost!

Compost Facts

  • In 2012 alone, more than 36 million tons of food waste was generated, with only five percent diverted from landfills and incinerators for composting.* 
  • When food is disposed in a landfill it rots and becomes a significant source of methane - a potent greenhouse gas with 21 times the global warming potential of carbon dioxide. Landfills are a major source of human-related methane in the United States, accounting for more than 20 percent of all methane emissions.* Composting is a feasible way to reduce large sources of greenhouse gases. 
  • Vermicomposting is composting with worms in an enclosed worm bin. A worm bin is a convenient, low maintenance way to compost indoors. Worms eat two times their bodyweight each day!
  • The most efficient composting occurs with a carbon:nitrogen mix of about 30 to 1.


Now at HSU - onsite Earth Tub! The Earth Tub is designed specifically for on-site composting of food-wastes. The Earth Tub is a fully enclosed composting vessel featuring power mixing, compost aeration, and biofiltration of all process air. The Earth Tub is capable of processing as little as 40 lbs per day or as much as 500 lbs per day. 


volunteer opportunities

  • Learn the basics of compost by helping at the compost site
  • Help plan events such as May Day, Pumpkins To Bins, and SLAM Fest
  • Build support from campus administration to support a new compost site.

Contact: wrrap@humboldt.edu