This lecture introduces the course on economic growth and sustainability, taught by the instructor who has a background in housing economics and climate change economics. The course spans two semesters, focusing on the impact of human activities on the planet, particularly in the context of climate change. The instructor discusses the importance of addressing climate change and biodiversity loss, emphasizing the need for collective action to protect the planet. The lecture explores the challenges of balancing economic prosperity with environmental conservation, highlighting the trade-offs involved. It also delves into the role of science in informing policy decisions and the societal implications of prioritizing different interests, such as economic growth versus environmental protection.