In Ottawa, Canada, John Mava, an immigrant from Nigeria, is among the first participants in Build, a new initiative by the non-profit EnviroCentre, aimed at retrofitting homes to combat climate change. Launched in September, Build addresses the urgent need for skilled workers in the construction sector while providing training to marginalized groups, including women, Indigenous people, and newcomers. The Canadian government recognizes buildings as significant contributors to greenhouse gas emissions, necessitating a shift towards retrofitting existing structures. According to the Pembina Institute, achieving net-zero emissions by 2050 requires retrofitting 600,000 homes annually. As part of their training, Mava and fellow mentee Allan Kanobana, who moved from Rwanda, are learning practical skills such as insulation installation and safety protocols. The program also aims to foster an inclusive work environment, counteracting the historical biases in the construction industry. With a projected shortage of over 61,400 workers by 2032 due to retirements, initiatives like Build are crucial for bridging the gap and preparing a new generation of skilled workers.