Space Holderman

Space Holderman describes himself as “equal parts soil enthusiast and banana peel whisperer.” After studying environmental systems in college, he decided that the most immediate way to tackle climate change wasn’t in policy papers or lab models but in the humble compost bin. Since then, he’s worked with city governments, school districts, and backyard gardeners to prove that composting isn’t just about diverting waste—it’s about building a climate-resilient future one carrot top at a time.

A familiar face at community workshops and zero-waste festivals, Space is known for making compost science approachable (and occasionally hilarious). He has convinced skeptical neighbors to fall in love with worms, taught fourth graders to outcompete methane emissions with apple cores, and occasionally waxes poetic about the smell of good soil. When he’s not evangelizing about food scraps, Space can be found pedaling between community gardens on his cargo bike, coffee thermos in hand, ready to remind anyone within earshot that “climate action starts with leftovers.”