The world is facing both a housing crisis and a climate crisis. People everywhere are struggling to find and pay for homes. When we do build new housing, the construction unleashes tons of greenhouse gases. We need more affordable houses built faster without polluting the Earth. What if you could 3D print eco-friendly houses in months, weeks, or even days? What if you could quickly manufacture modular, mass timber buildings that actually slow climate change? And what if learning to 3D print human settlements on the Moon and Mars helps us tackle housing challenges here on Earth? All of these things are possible. Technology offers hope and solutions, but it takes teamwork to challenge old ideas and change traditional ways of doing things. Discover why homes are essential for our health and well-being and meet trailblazers who are proving that we can create affordable green housing and healthy communities at the same time. The epub edition of this title is fully accessible.