2009-2012

350 Colorado forms as an independent state affiliate of 350.org, a global organization building a movement to solve the climate crisis. Our local teams begin growing the movement with global days of action, marches, teach-ins, and rallies across the state. We organize the “Snowless Ski Race” in Aspen.

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2013

We decide to become a nonprofit organization to better support local 350 teams around the state and to more effectively address how Colorado contributes to and can help solve the climate crisis. In 2013, we continue growing our group of local teams and also organize the Forward on Climate March in Denver.

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2014

350 Colorado receives 501c3 status! Together, we stand up against the KXL pipeline and our elected leaders follow. Bill McKibben joins us for the “Do the Math Tour” launching fossil fuel divestment campaigns at institutions and universities across CO and the nation. 350 Boulder County spearheads the Edible Landscapes Working Group, harvesting over 10,000 pounds of fruit that would otherwise be wasted. 350 Central Colorado organizes a Forum on Climate, Energy, and Building a Resilient Community. 

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2015

 We host our first Colorado Climate Leadership workshop for aspiring and veteran climate activists across the state. Together with our coalition partners, we launch Coloradans Against Fracking, elevating the issue by organizing the Stop the Frack Attack March & hosting our first “Fracking Tour” of Weld and Larimer Counties. Our “Fossil Free Your Life” garden party educates hundreds of Boulder residents on ways to transition off fossil fuels. 

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2016

Local organizers help build critical public support that leads to the rejection of the KXL pipeline nationally. The City of Boulder commits to 100% renewable energy, followed by dozens of others. 350CO and allies organize Break Free From Fossil Fuels, over 1,000 people participate and 50 risk arrest to stop auctioning public lands and waters for oil and gas development. Volunteers gather 215,000 signatures on statewide petitions in an effort to place initiatives on the 2016 ballot to protect our communities from fracking.

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2017

Over 8,000 people demand climate justice despite blizzard conditions at the People’s Climate March in Denver. Our volunteers lead a successful grassroots campaign that results in Colorado joining the U.S. climate alliance. 350CO local teams help pass local resolutions for green roofs in Denver and municipalization of Boulder’s energy grid. 350 Colorado Springs wins 100 megawatts of solar energy for the city. Board Member Leslie Weise wins The Colorado Independent’s 2017 Whistleblower award. 

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2018

Hundreds of community members give over 50 hours of testimony and engage in civil disobedience at Colorado Oil and Gas Commission hearings. Our volunteers dedicate thousands of hours to help Prop 112 receive over 1.2 million votes, despite being outspent 40:1 by oil and gas. The Colorado Climate Justice Platform and Summit help make climate change a top issue during Colorado’s general election. 

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2019

Our collective efforts including a petition to Gov. Polis, hours of testimony at the state Capitol, and hundreds of letters sent to legislators help to pass dozens of climate bills including SB19-181 (Colorado’s first-ever bill aimed to restrict oil and gas production in CO). Our 350 Metro Denver team successfully persuades the City of Denver to divest $180M from fossil fuels. We co-lead the Colorado Climate Strike Coalition, recruiting over 10,000 strikers, 30+ strike events, and even host world-renowned climate activist Greta Thunberg.

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2020

Through the pandemic, 350 Colorado remained committed to action to solve the climate crisis. We moved our events to social-distanced, online activities and hosted over 140 actions or events, with over 10,000 participants! We supported Earth Day Live, a three-day global virtual event with over 4 million participants. We launched a massive Get Out the Vote effort, our volunteers reached over 97,000 likely environmental voters to help them make it to the polls. Our volunteers and staff attended every AQCC and COGCC regulatory hearing and secured statewide 2,000′ setbacks from oil and gas wells to homes & schools. After years of campaigning, our 350 Colorado Springs team secured a just transition off coal in Colorado Springs, with early closures for two dirty coal plants! Boulder became the first county in the nation to screen insurance carriers for ties to fossil fuels and passed the state’s strictest fracking regulations.

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AND SO MUCH MORE!