Ensuring that buildings are designed to be sustainable is key for our future. Global Green USA has worked on many green building projects, including the Holy Cross project. The Build it Back Green project was first started in the US, following the devastation caused by Hurricane Katrina. Global Green USA developed a program that builds green, affordable housing in New Orleans. As natural disasters become more common and more serious, this project seeks to find ways to rebuild sustainably, and Build it Back Green in Australia was launched following the Black Saturday Bushfires in 2009.