ALOHA 'AINA EARTH DAY — The 32nd Recycling Community Cleanup Project accepts bulky items and recyclables for disposal, 8 a.m.-2 p.m. Oct. 13 at Kaimuki High School. Accepting scrap metal, auto parts, lawn mowers, newspapers, cardboard, HI-5 containers, fishing nets and more. For bulky-item curbside pickup, call Steve Uyeno at 527-5587 or Rene Mansho at 306-1876. Proceeds will benefit Kaimuki High School, the Mo'ili'ili Community Center and the Kapahulu Center.

MANOA WORK TRIP — Remove strawberry guava and other weeds from Manoa Cliffs Trail, 8 a.m.-2:30 p.m. Oct. 13. Bring long pants, sturdy shoes, raingear, water, lunch, hat, bug repellent, sunscreen. Meet at the Church of the Crossroads parking lot. RSVP by Oct. 11 to Rachel Neville at oisc@hawaii.edu or 286-4616.

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. Oct. 27. 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.

KANE'OHE WETLAND PROJECT — Volunteers needed Oct. 13 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 Deborah Blair, 955-4168.

CRATER OVERNIGHTER — Stay over at Holua Cabin on a Friends of Haleakala National Park service trip to weed heterothica Oct. 20-22. Call 808-248-7660.

LIMAHULI 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 a new location, 2131 Makiki Heights Drive; call 988-8995. Tasks include power-washing trailers, painting, planting.

ARBORETUM WORK PARTY — Lyon Arboretum in Manoa holds a volunteer work party at 8 a.m. on the first Saturday of each month. Meet in parking lot, prepared for rain and sun; closed-toe shoes, bug repellent, hat, gloves recommended.

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.

HONU GUARDIANS — Educate residents and visitors about respectful turtle viewing at Laniakea by joining NOAA Pacific Islands Regional Office's Honu Guard program. For details, visit www.fpir.noaa.gov/PRD/prd_volunteer_opps.html.

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