10 great city projects for nature – from vertical forests to a ‘gangsta garden’

Around the world, architects, activists and communities are finding ways to bring wildlife into urban areas

Many readers have noticed wildflowers thriving in urban areas as city councils decide to let grass grow wild. These colourful little patches may seem like window dressing in the face of vast decline, but across the world people are welcoming wildlife into cities, where more than half of us live. Here is a look at 10 of the most exciting and innovative urban biodiversity projects popping up.