Current sand shortages symbolize the onset of numerous global challenges within our immediate future - our world has started to run out of resources. In this talk, I aim to inspire you to ponder how our materials, buildings, and infrastructure can take the giant leap to become ‘resource independent.’ Framed with the research challenges of building on Mars, I invite you to consider how the small steps we undertake in extraterrestrial construction can lead to giant leaps to decarbonize our built environment on Earth.