Arcata Community Forest Barnum Tract

Arcata, California

United States

Improved Forest Management

Technical details

Coast redwoods, the world's tallest tree, can reach heights of 100 feet in their first 50 years (and a current maximum of 380 feet). So even second-growth trees soar to impressive heights. The Barnum Tract is part of the Arcata Community Forest—2,350 acres of second-growth redwood forest in Northern California's Humboldt County.

Much of the community forest was logged during the 1880s. The City of Arcata purchased the Barnum Tract in 2003 from a timber company. The city manages the forest to Forest Stewardship Council management standards. So the entire community forest sequesters approximately 2,500 more metric tons of carbon dioxide a year than equivalent neighboring forests. That's the equivalent of taking 550 cars off the road each year. The forest receives no taxpayer dollars, so income from selling carbon offsets is crucial for managing the forest and keeping it open for recreational uses.

A carbon offset represents the reduction of 1 metric ton (2,205 pounds) of carbon dioxide emissions. The Arcata Barnum Tract project does that by absorbing (sequestering) CO2 from the atmosphere.

Cloverly buys offsets that meet accepted standards for being real, measurable, verifiable, permanent, and additional. "Additional" means that the carbon savings would not have happened without the offset project and that the project would not have happened unless it got certified to sell carbon offsets. The Climate Action Reserve registers the Arcata Barnum Tract project. You can find verification documents at

This offset covers the year 2008. Projects can produce many offsets during a year. So a project may appear more than once in the Cloverly portfolio. You can tell the year of the offset by the date in the web address for each project: "12-months-starting-[month]-[year]." For a list of all the projects in our portfolio and an interactive map, see Learn more about Cloverly at

Total Capacity

Instrument Type

Carbon Offset

Registry Name

Climate Action Reserve