LITTER BUGS MAUI — Community Work Day is coordinating Litter Bugs Me cleanups at harbors, parks, historic sites, beaches and other spots around Maui 8 a.m.-noon Saturday. Trash bags and gloves provided; call (808) 877-2524.

WORM COMPOSTING — Learn the basics of vermicomposting at 1 p.m. July 29, at Manoa Gardens Elderly Housing Community Center, 2790 Kahaloa Drive; $30, includes minibin, starter colony and manual. Call 382-0432 or e-mail waikikiworm@hawaii.rr.com.

SIERRA CLUB BEER NIGHT — Hear presentations on environmental topics and learn how to get involved; 5:30-7:30 p.m. on these evenings, Cassis at 66 Queen St.: July 25, outings and service projects with Randy Ching; Aug. 22, global warming update with Jeff Mikulina; Sept. 26, curbside recycling with Betty Gearan.

KANE'OHE WETLAND PROJECT — Volunteers needed Aug. 11 to help the Sierra Club clear a wetland of mangrove to create habitat for endangered water birds at Marine Corps Base Hawai'i. Because the base is a secured military facility, volunteers must provide name and Social Security number in advance and bring a signed waiver. Call 955-4168.

POUHALA MARSH RESTORATION — The Hawai'i Nature Center is restoring Pouhala Marsh in Waipahu. Volunteers are needed to pull pickleweed and mangrove 8:30-11:30 a.m. Aug. 18. Bring work gloves, water, hat, sunscreen, towel and change of clothes; covered footwear and long pants required. Contact Pauline Kawamata at 955-0100, ext. 18.

THURSDAY HELPERS — Kaua'i's Limahuli Garden & Preserve of the National Tropical Botanical Garden seeks volunteers to restore native forest Thursdays, 8-11 a.m. Call Lahela Correa, (808) 826-1053, or Lea Taddonio, (808) 332-7324, ext. 228.

NATURE CENTER WORKDAYS — Hawai'i Nature Center weekly volunteer workdays are held 10 a.m.-2 p.m. Saturdays at new location, 2131 Makiki Heights Drive; call 988-8995. Tasks include power-washing trailers, painting, planting.

CHUN'S REEF CLEANUP — Join Adopt-a-Beach Hawaii and Save The Sea Turtles International at noon July 28 for Chun's Reef Beach highway and coastal cleanup. Trash bag, gloves and purified water provided; bring hat, sunscreen and beach shoes. Meet at 61-529 Kamehameha Highway, Hale'iwa. See www.seaturtlesinternational.com or call 637-2211.

NATURE LOVERS WANTED — Volunteers needed to staff the Waimea Valley Audubon Center information kiosk, surrounded by gardens, ponds and endangered water birds. Must commit to three hours per week through August. Call Kelly Perry at 638-9199.

PINE TREE PULLERS — Help remove invasive pines near Maui's Hosmer Grove, 9 a.m.-noon Sundays. Transportation provided at 7:30 a.m. from Harbor Shops, Ma'alaea, and 8:15 a.m. from Mayor Hannibal Tavares Community Center, Pukalani. Closed footwear required; bring water and lunch. Reserve space by calling (808) 856-8341.

KOKUA HALEAKALA — Haleakala National Park needs volunteers for trail maintenance, visitor assistance, weed control, cultural demonstrations, library work and clerical help. Transportation from Makawao available. Apply at www.nps.gov/hale/supportyourpark/volunteer-opportunities.htm. Call (808) 572-4487.

Send listings to: For the Environment, P.O. Box 156, Wailuku, HI 96793; cwilson@honoluluadvertiser.com; or fax (808) 242-1520.