Events Calendar Submission

Close-up of tabling materials and signage during a Harvard Earth Day event in 2023.

Submit a Sustainability Event

Tell us about your sustainability-related news or event at Harvard so we can help spread the word!

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Saturday
1:00 pm-4:00 pm GMT+0000

Cherry Blossom Celebration at the Arnold Arboretum

Come celebrate Japanese culture amongst the Arboretum’s beautiful cherry blossoms with taiko drumming, traditional Japanese dance, Japanese games and calligraphy, family activities, and the inside scoop on the Arboretum’s own cherry collection.

April

Wednesday
12:00 pm-2:00 pm GMT+0000

Community Event

Earth Day 2026

Earth Day

Earth Month 2026

Join the Harvard Office for Sustainability and Harvard Common Spaces for an Earth Day Festival on Wednesday, April 22, 2026 from 12 to 2 pm at the Science Center Plaza.

April

Wednesday
11:00 am-2:00 pm GMT+0000

Open to Harvard Community

Spring 2026 Freecycle at Smith Campus Center (SCC)

Earth Day

Earth Month 2026

Join us at our Freecycle in the Smith Campus Center! Drop off reusable goods you no longer need, and browse a fantastic selection of items brought by others. Find some secondhand items to gift this year. Popular items include books, clothes, and working household goods.

April

Wednesday
10:00 am-12:00 pm GMT+0000

Charles River Clean-Up 2026

Earth Day

Earth Month 2026

Harvard Kennedy School

Take action on Earth Day and join your Harvard community members and friends for a Charles River Clean-up on Earth Day, Wednesday, April 22, 2026 from 10 am to 12 pm! The Charles River Conservancy will be providing a brief education on the local watershed and provide tools and training for the morning.

April

Wednesday
9:00 am-12:00 pm GMT+0000

Open to Harvard Community

HKS Hosting Bike Repair Day and Breakfast

Bicycling

Earth Month 2026

As part of 2026 Earth Month, the Harvard Kennedy School will host a bike repair day and breakfast on Wednesday, April 15th from 9 am-12 pm.