The book will focus on climate changes and research and living in the Arctic. Three environmental scientists will also contribute to the book, which will be published simultaneously in Norway, Sweden and Denmark in October, Svalbardposten reports. Crown Prince Haakon of Norway, Danish Crown Prince Frederik and Swedish Crown Princess Victoria visited Svalbard and last summer. This was their first official visit together. This year they visited Greenland. The trips were aimed at highlighting the International Polar Year that ended in March 2009. The three heirs to the thrones of the Scandinavian countries were all patrons of the polar year committees in their respective countries.