More than ever, communities like GreenBuzz are giving passionate leaders the opportunity to draw on each other's strength and experiences to drive to a more sustainable and equitable world. At a time that we need more leaders and trees, GreenBuzz is a welcome addition that I fully endorse.

Paul Polman CEO, Unilever; Chairman, World Business Council for Sustainable Development

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#027 – ReHats – upcycling for more life & sustainability in the German hat market!

GreenBuzz Berlin is on a mission! This post is part of our 100 Sustainable Solutions initiative. Learn more about it here. Why does your organization exist? The idea behind ReHats was to reinvent the mostly grey and boring hat market. Especially in Germany it’s a pretty conservative market. So we wanted to bring some new ideas, a bit of color and sustainability to it. That’s what brings […]


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About Us

GreenBuzz Berlin e.V. is an association that supports sustainability on regional and international level through research, education and networking. We build an active community to make the city more sustainable. Read more...