Move over, tree sitters. A group of Oakland and Berkeley residents known as the Hills Conservation Network has sued the East Bay Regional Parks District over its proposed clear-cutting of more than 500,000 trees on 19,000 acres in the East Bay hills. The work is intended to reduce fuel loads related to the fast-burning, non-native eucalyptus trees that cover large swaths of the East Bay hills, as well as to restore native trees such as redwood and Coast Live Oak. It will be funded using parcel tax receipts from 2004’s Measure CC. The Hills Conservation Group, however, has taken a firm stance against the clear-cutting since its proposal a number of years ago on the basis that “EBRPD’s program will irreparably harm the beautiful, vibrant and diverse ecosystem of the East Bay hills,” wrote Hills Conservation Network founder Dan Grassetti in a press release.