• May 2nd, 5pm: KCAAP Open House and Student Film screening – 5 films on climate change. On Kauaʻi. Link HERE
• May 3rd, 9am to 11am: 3Rs School Recycling Drive at Kipapa Elementary School. On Oahu. Link HERE
• May 3rd, 9am to 11:30am: Kōkua Learning Farm Community Workday. On Oahu. Link HERE
• May 3rd, 10am: Manu o Kū Festival at ʻIolani Palace. On Oahu. Link HERE
• May 3rd, 11am: WAIPĀ ʻĀINA FESTIVAL. On Kauaʻi. Link HERE
• May 4th: Sierra Club – Makawao Forest Reserve – Kahakapao Loop. On Maui. Link HERE
• May 4th, 10am: Hawai‘i Bicycling League is kicking off National Bike Month. On Oahu. Link HERE
• May 5th: Resilient Oahu – CAP Community Workshop in Manoa. On Oahu. Link HERE
• May 6th & 7th, 7am: NDPTC – Hurricane Awareness. Virtual. Link HERE
• May 6th, 8am: Beyond Climate Silence: Transforming Eco-Anxiety Workshop. Virtual. Link HERE
• May 6th, Noon: PI-CASC – Ecological traits predict nutritional traits in complex agroforestry systems. On Oahu and Virtual. Link HERE
• May 6th, Noon: Civil Cafe: 2025 Legislative Wrap-up. On Oahu & Virtual. Link HERE
• May 8th, 1:30pm: We Can Save Our Earth: Environment Opportunities 2025. Virtual. Link HERE
• May 9th, 5pm: Bishop Museum – Ke kāhuli leo leʻa o ka nahele. On Oahu. Link HERE
• May 9th, 6:30pm: Hawai‘i Bicycling League – Filmed by Bike Movie Night. On Oahu. Link HERE
• May 9th & 10th: Lyon Arboretum Spring Plant & Craft Sale 2025. On Oahu. Link HERE
• May 10th: Sierra Club – Makawao Forest Trail Maintenance Day. On Maui. Link HERE
• May 10th, 8am: eopala – E-Waste Recycling Fundraiser Kapalama Elementary. On Oahu. Link HERE
• May 10th, 9am to 11am: 3Rs School Recycling Drive at Pearl City Elementary School. On Oahu. Link HERE
• May 10th, 3pm to 8pm: 9th Annual Ko Olina Childrenʻs Festival. On Oahu. Link HERE
• May 11th: Sierra Club – White Cross Wailuku. On Maui. Link HERE
• May 12th to 18th: Hawai‘i Bicycling League – National Bike to Work Week. On Oahu. Link HERE
• May 12th, 7am Funding the future: What’s next
for local climate solutions? Virtual. Link HERE
• May 13th: Resilient Oahu – CAP Community Workshop in Pearl City. On Oahu. Link HERE
• May 14th, 5pm: Hawai‘i Bicycling League – Ward Ave. Bike Lane Cleanup & Pau Hana. On Oahu. Link HERE
• May 16th, 6pm: Bishop Museum – City Nature Challenge O‘ahu Meet-and-Greet. On Oahu. Link HERE
• May 17th, 8am to 10am: Adopt-A-Highway – Community Work-Day Event. On Maui. Link HERE
• May 17th, 8am: Pu’uanahulu Firebreak Volunteer Day. On Maui. Link HERE
• May 17th, 9am to 11am: Waiʻalae Elementary Public Charter School. On Oahu. Link HERE
• May 17th, 10am to 3pm: Mokupapapa Discovery Center – World Bee Day. On Hawaiʻi Island. Link HERE
• May 18th: Sierra Club – Makamaka‘ole Stream. On Maui. Link HERE
• May 18th: Sierra Club – Hana‘ula Ridge hike and service outing. On Maui. Link HERE
• May 19th and 20th, 8am: NDPTC – Flooding Hazards: Science & Preparedness. Virtual. Link HERE
• May 20th: Resilient Oahu – CAP Community Workshop in Aina Haina. On Oahu. Link HERE
• May 20th, 6pm: Surfrider – Community Potluck Social Gathering. On Oahu. Link HERE
• May 21st, 5:30pm: Bishop Museum – Grow Aloha. On Oahu. Link HERE
• May 21st, 7pm: Hawai‘i Bicycling League – National Ride of Silence. On Oahu. Link HERE
• May 23rd: Sierra Club – Palauea Archaeological Service Outing. On Maui. Link HERE
• May 24th: Sierra Club – Kokua Day at Fleming Arboretum, Pu‘u Mahoe. On Maui. Link HERE
• May 24th, 8am: eopala – E-Waste Recycling Fundraiser Kaiser High School. On Oahu. Link HERE
• May 25th thru 31st: Kau Coffee Festival. On Hawaiʻi island. Link HERE
• May 27th & 28th, 8am: NDPTC – Community Planning for Disaster Recovery. Virtual. Link HERE
• May 27th: Sierra Club – Wāwāmalu Beach Service Project. On Oahu. Link HERE
• May 27th, Noon: Transportation Directors Panel. On Oahu. Link HERE
• May 29th: Resilient Oahu – CAP Community Workshop in Kaneohe. On Oahu. Link HERE
• May 30th, 7:30am to 12:30pm: Kākoʻo ʻŌiwi Farm Volunteer Experience: Connect w/ the Land and Community. On Oahu. Link HERE
• May 30th, 5:30pm: Hawai‘i Bicycling League – Bike Month Pau Hana Party. On Oahu. Link HERE
• May 31st: Sierra Club – Hamakua Malama service outing. On Maui. Link HERE
• May 31st, 9am: Surfrider – Pōkaʻī Bay Beach Cleanup and Tree Planting. On Oahu. Link HERE
• Jun 1st: Sierra Club – Waihe’e Coastal Dunes and Wetlands Refuge. On Maui. Link HERE
• Jun 3rd: Resilient Oahu – CAP Community Workshop in Waianae. On Oahu. Link HERE
• Jun 4th: Sierra Club – Mālama Tree Crew: Ala Mahamoe Service Project. On Oahu. Link HERE
• Jun 4th, 8am: NDPTC – Planning for Coastal Hazards. Virtual. Link HERE
• Jun 4th, 1pm: State Climate Commission (CCMAC) meeting. On Oahu and Virtual. Link HERE
• Jun 7th: Sierra Club – Līpoa Trail. On Maui. Link HERE
• Jun 8th, 10am to 3pm: World Ocean Day at Maui Ocean Center. On Maui. Link HERE
• Jun 9th: Resilient Oahu – CAP Community Workshop in Waialua. On Oahu. Link HERE
• Jun 10th & 11th, 7am: NDPTC – Hurricane Awareness. Virtual. Link HERE
• Jun 11th: Sierra Club – Waihe‘e Ridge Trail hike. On Maui. Link HERE
• Jun 13th: Resilient Oahu – CAP Community Workshop in Waimanalo. On Oahu. Link HERE
• Jun 14th, 8am to Noon: La Ohana Days at the Waikalua Loko I’a. On Oahu. Link HERE
• Jun 14th, 10am: Ala Moana Beach Cleanup. On Oahu. Link HERE
• Jun 15th: Sierra Club – Haleakala Supply Trail to Rainbow Bridge and optional Hosmer Grove bird watching. On Maui. Link HERE
• Jun 20th, 5:30pm to Noon: Hawaiʻi Bicycling League – For the Love of Bikes Benefit. On Oahu. Link HERE
• Jun 22nd: Sierra Club – Iao Valley Exploration. On Maui. Link HERE
• Jun 27th, 7:30am to 12:30pm: Kākoʻo ʻŌiwi Farm Volunteer Experience: Connect w/ the Land and Community. On Oahu. Link HERE
• Jun 27th, 6pm to 9pm: Coral Spawning Night at Maui Ocean Center. On Maui. Link HERE
• Jun 28th: Sierra Club – Hamakua Malama service outing. On Maui. Link HERE
• Jul 11th: 10am: Roots and Renewal. On Maui. Link HERE
• Jul 17th: Community Restoration at Forests of Peahi. On Maui. Link HERE
• Jul 19th: 10:30am: Quiet Ocean Standards Initiative’s First Annual Fundraising Gala. On Kauaʻi. Link HERE
• Jul 22-25th: Hawaiʻi Conservation Alliance Conference. On Oahu. Link HERE
• Jul 27-31st: National Plant Board 99th Annual Meeting. On Oahu. Link HERE
• Aug 2nd thru 5th: Plant Health 2025 conference. On Oahu. Link HERE
• Aug 6th, 1pm: State Climate Commission (CCMAC) meeting. On Oahu and Virtual. Link HERE
• Aug 11th, 9am: Hawaii International Joint Conference on Natural Sciences. On Oahu. Link HERE
• Aug 23rd, 6pm to 9pm: Marine Science Night at Maui Ocean Center. On Maui. Link HERE
• Aug 27-29th: Hawai’i Congress of Planning Officials – Resilient by Design. On Oahu. Link HERE
• Sep 20th, 8am to Noon: La Ohana Days at the Waikalua Loko I’a. On Oahu. Link HERE
• Sep 20th, 9:30am to 3pm: Hala Fest. On Hawaiʻi Island. Link HERE
• Sep 27th, 8am: Hawaii Science Teaching Association and Hawaii Council of Teachers of Mathematics 2025 Fall Conference. On Oahu. Link HERE
• Sep 28th, 6:15am: Hawaiʻi Bicycling League – Ride Aloha Festival: Honolulu Century Ride & Aloha Fun Ride. On Oahu. Link HERE
• Oct 1st, 1pm: State Climate Commission (CCMAC) meeting. On Oahu and Virtual. Link HERE
• Oct 10th thru 13th: Kauluhiwaolele Maui Fiber Arts Conference. On Maui. Link HERE
• Nov 15th, 8am to Noon: La Ohana Days at the Waikalua Loko I’a. On Oahu. Link HERE
• Dec 3rd, 1pm: State Climate Commission (CCMAC) meeting. On Oahu and Virtual. Link HERE
If you know of an upcoming climate related, conservation or sustainability events, please email with as much details as possible, i.e. name of event, date and timing of event, island/location and Url/link to event.
