• Apr 1st, 6pm: The Silent Invasion: Protecting Hawaiʻi’s Agriculture Through Biosecurity. On Oahu. Link HERE
• Apr 1st, 6pm: Maui Ocean Center – Koholā: Encore Presentation. On Maui. Link HERE
• Apr 1st, 7pm: UH Sea Grant Nerd Night at Anna O’Briens. On Oahu. Link HERE
• Apr 2nd, 9am: NSWA Watershed Wednesday Webinars (National call). Virtual. Link HERE
• Apr 2nd, Noon: ISR – Institute for Sustainability and Resilience – Spring Sustainability Seminar Series. On Oahu
and Virtual. Link HERE
• Apr 2nd, 1pm: State Climate Commission (CCMAC) meeting. On Oahu and Virtual. Link HERE
• Apr 2nd, 5pm to 7pm: Roots & Resistance: Diversity in Aloha ʻĀina Mixer. On Oahu. Link HERE
• Apr 4th, 1pm to 3pm: UH Hilo – Native Plants and Gardens Days. On Hawaiʻi Island. Link HERE
• Apr 4th, 1pm to 3pm: UH Hilo – Mālama Honua Activity – Lāʻī. On Hawaiʻi Island. Link HERE
• Apr 5th, 9am to 11:30am: Kokua Foundation – Kokua Learning Farm Workday. On Oahu. Link HERE
• Apr 5th, 9:30am: Hawaiʻi Bicycling League – Zach’s Ride for Safe Streets. On Oahu. Link HERE
• Apr 5th, 10am to 1pm: Hawaiʻi CC – Mālama Honua Activity – Māla. On Hawaiʻi Island. Link HERE
• Apr 5th, 10am to 1pm: Hawaiʻi CC – Native Plants and Gardens Days. On Hawaiʻi Island. Link HERE
• Apr 5th: 2025 ONIZUKA DAY OF EXPLORATION. On Oahu. Link HERE
• Apr 5th, 10am to 4pm: Kauaʻi Earth Day – Ho‘olaule‘a No Ka Honua at Philippine Cultural Center. On Kauaʻi. Link HERE
• Apr 8th, 1pm to 2pm: Sustainable Journeys: Practical Tips for Conscious Travel Workshop. Virtual. Link HERE
• Apr 8th, 6pm: Maui Ocean Center – Koholā Film Feature. On Maui. Link HERE
• Apr 9th, Noon: ISR – Institute for Sustainability and Resilience – Spring Sustainability Seminar Series. On Oahu and Virtual. Link HERE
• Apr 9th, 5:30pm: The Book Club at Waiwai Collective. On Oahu. Link HERE
• Apr 11th, 9am to Noon: Hui Hoʻoleimaluō – Community Stewardship Days. On Hawaiʻi Island. Link HERE
• Apr 12th, 8am to Noon: Hawaiʻi CC – Pālamanui – Community Stewardship Days. On Hawaiʻi Island. Link HERE
• Apr 12th, 8am: eopala – Pearl Harbor Elementary E-waste Recycle Drive-Thru. On Oahu. Link HERE
• Apr 12th, 8am: Bishop Museum – Kalihi Ahupuaʻa Ride. On Oahu. Link HERE
• Apr 12th, 9am to 11am: 3Rs School Recycling Drive at Kaiser High School. On Oahu. Link HERE
• Apr 13th, 10am to 2pm: Mālama Honua Activity – Nahele. On Hawaiʻi Island. Link HERE
• Apr 14th, Noon to 1pm: Lā Honua Keynote with Sherri Mitchell and John Bear Mitchell. Virtual. Link HERE
• Apr 15th, 6pm: Maui Ocean Center – Koholā Film Feature. On Maui. Link HERE
• Apr 16th, Noon: ISR – Institute for Sustainability and Resilience – Spring Sustainability Seminar Series. On Oahu
and Virtual. Link HERE
• Apr 16th, 5:30pm: Bishop Museum – Grow Aloha. On Oahu. Link HERE
• Apr 16th, 6:30pm: BTSS – Reclaiming Democracy: From Disaster Recovery to Community Governance. On Oahu. Link HERE
• Apr 17th, 9am to Noon: Lā Honua K-12 Earth Day at UH Hilo. On Hawaiʻi Island. Link HERE
• Apr 17th, Noon to 3pm: UH Hilo – Conservation Career Day. On Hawaiʻi Island. Link HERE
• Apr 18th, 10am to 1pm: Kokua Foundation – Kokua Learning Farm Fun Day (Earth Day event). On Oahu. Link HERE
• Apr 19th: Sustainable Coastlines – Bellow’s Beach Cleanup. On Oahu. Link HERE
• Apr 19th: Project Kanu – Lā Honua Earth Day Festival. On Hawaiʻi Island. Link HERE
• Apr 19th, 8am to Noon: La Ohana Days at the Waikalua Loko I’a. On Oahu. Link HERE
• Apr 19th, 8am: eopala – Bottles 4 College recycling and E-waste Recycle Drive. On Oahu. Link HERE
• Apr 19th, 9am to 2pm: Waimea Valley – Mauka to Makai Earth Day. On Oahu. Link HERE
• Apr 20th – 26th: Merrie Monarch 2025. On Hawaiʻi Island. Link HERE
• Apr 21st, 9am to 1pm: Liko Nā Pilina – Community Stewardship Days. On Hawaiʻi Island. Link HERE
• Apr 22nd: Sustainable Coastlines – GoFarm Workday + EARTH DAY! On Oahu. Link HERE
• Apr 22nd, 10am to 1pm: Hawaiʻi CC – Manono – Global Earth Day. On Hawaiʻi Island. Link HERE
• Apr 22nd, 3:30pm to 4:30pm: Earth Day Collage with Cadette Girl Scouts. On Oahu. Link HERE
• Apr 22nd, 6pm: Maui Ocean Center – Koholā Film Feature. On Maui. Link HERE
• Apr 23rd, 11:30am to 1pm: KBG April Luncheon – Castle Foundation. On Oahu. Link HERE
• Apr 23rd, Noon: ISR – Institute for Sustainability and Resilience – Spring Sustainability Seminar Series. On Oahu
and Virtual. Link HERE
• Apr 25th, 7:30am to 12:30pm: Kākoʻo ʻŌiwi Farm Volunteer Experience: Connect w/ the Land and Community. On Oahu. Link HERE
• Apr 26th: Sustainable Coastlines – Aloha ‘Āina Workday at the Nation of Hawai’i. On Oahu. Link HERE
• Apr 26th, 9am to 11am: 3Rs School Recycling Drive at Moanalua Elementary School. On Oahu.
Link HERE
• Apr 26th, 8:30am to 11apm: Beach Clean-up – The Friends of Kamalani & Lydgate Park. On Kauaʻi. Link HERE
• Apr 26th, 9am to 5pm: 29th East Maui Taro Festival. On Maui. Link HERE
• Apr 26th, 6pm to 9pm: Earth Night at Maui Ocean Center. On Maui. Link HERE
• Apr 27th, 7:30am: Hawaiʻi Bicycling League – Hale‘iwa Metric Century & Aloha Fun Ride. On Oahu. Link HERE
• Apr 29th, 6pm: Maui Ocean Center – Koholā Film Feature. On Maui. Link HERE
• Apr 30th, 6am: Sustainability Symposium 2025. Virtual. Link HERE
• Apr 30th, Noon: ISR – Institute for Sustainability and Resilience – Spring Sustainability Seminar Series. On Oahu
and Virtual. Link HERE
• May 1st, 6am: Sustainability Symposium 2025. Virtual. Link HERE
• May 1st, 10am to 3pm: Maui Ocean Center – Lei Day. On Maui. Link HERE
• May 3rd, 9am to 11am: 3Rs School Recycling Drive at Kipapa Elementary School. 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 17th, 8am to 10am: Adopt-A-Highway – Community Work-Day Event. On Maui. Link HERE
• May 17th, 10am to 3pm: Mokupapapa Discovery Center – World Bee Day. On Hawaiʻi Island. Link HERE
• May 30th, 7:30am to 12:30pm: Kākoʻo ʻŌiwi Farm Volunteer Experience: Connect w/ the Land and Community. On Oahu. Link HERE
• Jun 4th, 1pm: State Climate Commission (CCMAC) meeting. On Oahu and Virtual. Link HERE
• Jun 8th, 10am to 3pm: World Ocean Day at Maui Ocean Center. On Maui. Link HERE
• Jun 14th, 8am to Noon: La Ohana Days at the Waikalua Loko I’a. On Oahu. Link HERE
• Jun 20th, 5:30pm to Noon: Hawaiʻi Bicycling League – For the Love of Bikes Benefit. On Oahu. 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
• Jul 22-25th: Hawaiʻi Conservation Alliance Conference. On Oahu. Link HERE
• Jul 27-31st: 6pm to 9pm: 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 23rd, 6pm to 9pm: Marine Science Night at Maui Ocean Center. On Maui. Link HERE
• Aug 26th: East Maui Taro Festival. On Maui. Link HERE
• Apr 30th, Noon: ISR – Institute for Sustainability and Resilience – Spring Sustainability Seminar Series. On Oahu and Virtual. 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 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
• 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 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.
