"Forest Condition in a Changing Environment" is a specialized book that addresses the challenges posed by air pollution and climate change to forests. Over the past two decades, public debate about the state and growth of forests has increased, yet many questions regarding these global issues remain unanswered. The book is based on the latest findings and publications from researchers involved in the Forest Condition Research Programme and provides a comprehensive analysis of the changes occurring in forests as well as the factors influencing their condition. It examines what changes are taking place in forests, why the condition varies, and what measures can be taken to preserve forest health through appropriate management. The research findings come from, among others, the Finnish Forest Research Institute and offer valuable insights into the vitality of forests and the impacts of environmental factors.