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Clean Energy

Our Commitment to Clean Energy

Green Century persuades companies to commit to clean and renewable energy sources because immediate action is needed to mitigate the impacts of climate change. Learn how you can help by investing more sustainably in clean energy.

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Our Mission

Our shareholder advocates have won commitments from various companies to cut greenhouse gas emissions.

Our nonprofit partners have convinced state leaders to add solar panels along highways in California, add heat pumps to homes across the nation and other efforts to switch from fossil fuels to clean, renewable energy.

Learn more here!

Clean Energy Investing in the News

Reflecting on Green Century’s 35 years of impact

What once seemed unconventional—launching a green investment firm to fund environmental nonprofits—has become a proven, long-lasting success. This year, Green Century Capital Management marks its 35th anniversary, celebrating more than […]

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Corralling Cow’s Climate Hoofprint

I recently had the opportunity to speak on a webinar about a dangerous pollutant warming our planet and dirtying our air […]

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Columbia Sportswear hikes up sustainability efforts

Boston, March 12, 2026 –  Green Century Capital Management (Green Century) has secured a pledge from Columbia Sportswear that should decrease climate pollution from the company’s buildings over the next decade.

Climate Roadmaps Give Investors Transparency in Transition

Companies know that climate risk is a business risk. Beyond projections of nearly $600 billion in annual losses […]

More About Our Environmental Impact

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Plastics

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Protecting Forests

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Right to Repair