The young and foolish podcast has a special guest this week: Raquel Sierra - Lorenzo's sister. She is here to provide some insights on urban forestry. They start by talking about what it is. Raquel shares a pragmatic way of improving the green spaces in urban environments: regreening and repurposing the existing areas. They bring up how the global pandemic has raised awareness for urban forestry and urban planning in general. Lorenzo wonders whether native or non-native trees should be planned going forward to adapt to climate change. They talk about how Vancouver is in terms of urban forestry. Finally, they end the episode with the highlights of the week segment, where George Wang shares some exciting news.