Climate change is driven by rising levels of greenhouse gases like carbon dioxide, methane, and nitrous oxide. Greenhouse gas removal (GHGR) refers to a range of technologies designed to remove greenhouse gases from the atmosphere. To meet climate goals, we need to remove up to 10 gigatons of CO₂-equivalent annually by 2050, yet current GHGR methods are removing less than 0.0003 gigatons per year.

Biology plays a critical role in natural gas cycling, and emerging biotechnologies—like bio-enhanced rock weathering and methane removal—are showing promise for scalable, durable solutions. However, funding and research for these biologically-based approaches remain minimal.

Homeworld supports early-stage research through funding, community building, and facilitating publicly available knowledge at the intersection of biology and greenhouse gas removal. We focus on two promising but under explored areas: 

• Biologically-enhanced rock weathering (bio-ERW)

• Biologically-enhanced methane removal (bio-MR)