Heirloom

Harnessing the natural power of limestone to permanently remove billions of tons of carbon dioxide from the air while creating new energy pathways. We need to remove billions of tons of CO2 from the atmosphere to prevent the worst impacts of climate change. Heirloom leverages the best of nature and engineering to permanently remove CO2 from the atmosphere. Rocks are some of the planet's most vital carbon sinks. Limestone is an abundant and inexpensive rock that captures massive amounts of CO2 from the air over years in a process known as carbon mineralization. Heirloom’s technology accelerates this natural process to just days.