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Thank you for celebrating Earth Day with us!

Last year's 2020 Earth Optimism Summit was an incredible global success – thanks to you! More than 55,000 devices in over 170 countries tuned in to watch our 102 hours of live stream. The hashtag - #EarthOptimism - reached over 19 million people during the Summit. We could not have made this a reality without your involvement and support!

This year we are celebrating with more digital events! Check back soon to see the full schedule of #EarthOptimism conversations to come.

Learn More About Us

Global Events

Earth Optimism Cambridge

Earth Optimism Teen Event: Changing the Climate Conversation

Stemming the Tide: Global Strategies for Sustaining Cultural Heritage Through Climate Change Symposium

VIEW ALL PARTNER EVENTS

Primary Sponsors

Past Summit Events

2019

2018

2017

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