All events are free unless otherwise indicated.

COMING UP

"Albatross as Indicators of Plastic Pollution in the Marine Environment," lecture by David Hyrenbach," one of a series of "Plastic and Hawai'i's Marine Life" lectures and films, organized by the Beach Environmental Awareness Campaign Hawai'i; 6:30 p.m. April 29, University of Hawai'i architecture auditorium; 393-2168, www.b-e-a-c-h.org.

"SEA TURTLE STEWARDSHIP," by Patrick Doyle, vice president, NOAA Fisheries, Malama Na Honu, one of a series of April lectures, sponsored by the UH Sea Grant Hanauma Bay Education Program, exploring Hawai'i environmental stewardship programs; 6:30 p.m. April 30, Hanauma Bay Education Center theater; free (free parking after 5:30 p.m.); 397-5840.

NATIVE FLORA/FAUNA ART WORKS SOUGHT for June 13-Aug. 2 "Hawai'i Nei 2009," art show of native plants, animals and landscapes, sponsored by state Department Land and Natural Resources, Volcano Art Center Gallery and Three Mountain Alliance; entries due May 29 and 31 at Volcano Art Center, Volcano Village, Big Island; 808-333-7741, or www.volcanoartcenter.org.

SUSTAINABLE LIVING EDUCATIONAL SERIES, "green" classes on rainwater harvesting, alternative power systems, sustainable gardening and "sustainability applied," 5 to 7 p.m.; April 30 and May 1, Natural Energy Lab of Hawai'i Authority Gateway Center, Kona, Hawai'i; $10 a class; 808-896-7656.

HO'OMALUHIA BOTANICAL GARDEN SPRING PRESCHOOL ACTIVITIES, 10:30 a.m. May 19 (bees); with story and song time, crafts and short hike. Recommended items: rain, mud and mosquito precautions, picnic lunch and covered shoes; free; 233-7323.

"ECO-FAITH: CREATING AND SUSTAINING GREEN CONGREGATIONS," a user-friendly guide for pastors, church leaders, congregations and individuals, by local psychologist Charlene Hosenfeld; available late April at local bookstores, or from The Pilgrim Press, 800-537-3394.

BE A GREENIE

FREE GARDEN MULCH, available 9 a.m. to 3 p.m. Saturdays, Halawa Xeriscape Garden; bring containers and shovel; 748-5041, www.boardofwatersupply.com.

WAIMEA VALLEY GREETER, volunteers needed one day a week for 2 1/2 hours; 638-7733.

WEED AND POT CLUB, Maui Nui Botanical Garden's Weed & Pot Club meets 8:30 to 10:30 a.m. Wednesdays, 150 Kanaloa Ave., Kahului, Maui, to do beautification and maintenance work; tools, gloves, drinking water provided; wear shoes; 249-2798.

NATIONAL GARDEN HELP, volunteers needed to protect rare plants and ecosystems at National Tropical Botanical Garden, Kaua'i; help needed in administration, conservation, education, development, etc.; 808-332-7324, ext. 228, or volunteer@ntbg.org.

Niaulani nature walk, guided tour through an old-growth forest; 9:30 a.m. Mondays; from Volcano Art Center, Niaulani campus, Volcano Village, Big Island; 808-967-8222, www.volcanoartcenter.org.

Niaulani Forest WorkDay, volunteers needed to preserve the rainforest; 9 a.m. to noon third Sunday of each month; Volcano Art Center, Niaulani campus, Volcano Village, Big Island; 808-967-8222.

TUESDAYS AT KANAHA, weekly beach cleanup and plant maintenance, coordinated by Community Pride at Kanaha Beach Park, Maui, 8 to 10 a.m. Tuesdays at the park; Valerie Vines Magee, 808-264-1454.

CHUN'S REEF BEACH /COASTCLEANUP by Adopt-A-Beach Hawaii and Save The Sea Turtles International; noon last Saturday monthly, from 61-529 Kamehameha Highway, Hale'iwa; trash bag, gloves and purified water provided; bring hat, sunscreen and beach shoes; 637-2211.

MAKIKI FOREST RESTORATION PROJECT, volunteers needed to weed, pick up branches and plant, water and fertilize native plants as part of Makiki Watershed Awareness Initiative forest restoration project; 9 a.m. to 2 p.m. fourth Saturday of each month; 973-9782.

Send announcements, with contact name and phone number, to: For the Environment, Island Life, The Advertiser, P.O. Box 3110, Honolulu, HI 96802; or islandlife@honoluluadvertiser.com, with "For the Environment" in the subject line. Deadline is 10 days before the event.