Detalles del libro
Formato
Tapa blanda
Páginas
64
Idioma
Inglés
Publicado
May 19, 1995
Editorial
HarperCollins
ISBN-10
0688041582
ISBN-13
9780688041588
Descripción
Miles overhead, a thin layer of ozone gas blankets the earth, shielding life on the surface from the sun's deadly ultraviolet radiation. But this protective cover is shrinking, destroyed by chemicals released into the atmosphere. As a result, more UV rays now reach the ground, and skin cancer is on the rise.