Ocean Worlds: The story of seas on Earth and other planets pdf

Jan Zalasiewicz, profesor de paleobiología en la Universidad de Leicester, profundiza en el Antropoceno. Jan Zalasiewicz es profesor de paleobiología en la Universidad de Leicester, Reino Unido. Al principio de su carrera, fue geólogo de campo y paleontólogo en el Servicio Geológico Británico, trabajando para descifrar los estratos del este de Inglaterra y luego las montañas del centro de Gales. Ahora, enseña geología e historia de la Tierra a estudiantes de pregrado y posgrado, y estudia ecosistemas y entornos fósiles a lo largo de más de quinientos millones de años de tiempo geológico. En los últimos años, ha estado involucrado en ayudar a desarrollar ideas sobre el Antropoceno, el concepto de que los humanos ahora impulsan gran parte de la geología en la superficie de la Tierra, y preside el Grupo de Trabajo de Antropoceno de la Comisión Internacional de Estratigrafía.

Ocean Worlds: The story of seas on Earth and other planets pdf por Jan Zalasiewicz

Oceans make up most of the surface of our blue planet. They may form just a sliver on the outside of the Earth, but they are very important, not only in hosting life, including the fish and other animals on which many humans depend, but in terms of their role in the Earth system, in regulating climate, and cycling nutrients. As climate change, pollution, and over-exploitation by humans puts this precious resource at risk, it is more important than ever that we understand and appreciate the nature and history of oceans. There is much we still do not know about the story of the Earth's oceans, and we are only just beginning to find indications of oceans on other planets. In this book, geologists Jan Zalasiewicz and Mark Williams consider the deep history of oceans, how and when they may have formed on the young Earth - topics of intense current research - how they became salty, and how they evolved through Earth history. We learn how oceans have formed and disappeared over millions of years, how the sea nurtured life, and what may become of our oceans in the future. We encounter some of the scientists and adventurers whose efforts led to our present understanding of oceans. And we look at clues to possible seas that may once have covered parts of Mars and Venus, that may still exist, below the surface, on moons such as Europa and Callisto, and the possibility of watery planets in other star systems.