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The Hum Sum

Humanity Adding Solutions

Global Eco-Community Platform

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Why Hum Sum


There are so many great, environmental initiatives occurring simultaneously all over the world and vital ideas are getting lost in the shuffle.  This open, no cost, platform is dedicated to being a smart (rant-free and politics-free) framework for linking and consolidating practical eco-information. Let's show how timely progress can be achieved together through organized support, implementation and collaboration!  

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the Hum sum free exchange

Give away your excess stuff. Wish for what you want!


Knit insulated bag

Donated by: Rudy

Found in: ExcessAccess.org

Oct 26, 2021

San Francisco, 94103, USA


Desk Lamp L

Wished by: Tiredstudent

Found in: ExcessAccess.org

Oct 26, 2021


More info on Free Exchange


Everyone! Organizations, businesses, government agencies, individuals... 


 Local eco-events worldwide calendar, forums, free stuff exchange...


To bridge the gap between global climate initiatives and public actions.


Here, everyone can showcase inspiring examples for building healthy environments. From climate summits to green building open house walking tours, celebrate eco-actions, great and small. Promote your restaurant's climate-friendly menu, nonprofit's volunteer day, school's edible garden, airport's new recycling center, local shop's sale on sustainable products, dog park's model poo composting station, electric car parade, clean water art expo, or bike-friendly neighborhood roundtable... Let's gather momentum and build on each others ideas! The world is watching!


Discuss real-life eco-challenges. Add green incentives for work and home. Connect with innovators from different regions and across sectors. Discover the value of perspectives from every rung of the ladder. Help consolidate environmental news in this framework with links back to your sites for program details, research, fundraising, products, etc. Upvote experts with solutions to barriers. Volunteer to moderate this rant-free, troll-free, politics-free zone, so that vital collaboration can happen. Humanity has boots on the ground, seats in the boardroom and eyes on the future, so coordination is key!

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Members, you can post your eco-events taking place around the world as models for more communities to follow. Incorporate your ideas, logos, and links. This is a collaborative effort, orchestrated with many NGOs, businesses, and individuals, which is open to every country and every language.