The content originally appeared on: CNN Sign up for CNN's Life, But Greener newsletter. Our seven-part guide helps you minimize your personal role in the climate crisis and reduce your eco-anxiety. Once Sydney's tallest building, the AMP Centre was showing its age. The outdated 1970s structure had come to the end of its lifespan, and the tower's owners wanted to replace it with something bigger, better and more energy-efficient. But demolishing high-rises comes with significant environmental costs, from construction waste […]