The image of the Earth on the front cover was acquired from the GOES--8 Imager by the Laboratory for Atmosphere at NASAa S Goddard Space Flight Center, Greenbelt, MD. It was taken on September 2, 1994, using two channels for the Imager to produce a "natural color" effect. The photos shown here on the back cover illustrate the four spheres of the Earth system -- the atmosphere, biosphere, hydrosphere, geosphere -- together with changes being produced by human activities.

� propos de l?auteur

Brian Skinner, Yale University Stephen Porter, University of Washington Daniel Botkin, George Mason University

Les informations fournies dans la section � A propos du livre � peuvent faire r�f�rence � une autre �dition de ce titre.

Description de la librairie

Visitez la page d�accueil du vendeur

Informations commerciales relatives au vendeur

BennettBooksLtd
NV, U.S.A.

Conditions de vente et de livraison

Conditions g�n�rales de vente

We guarantee the condition of every book as it's described on the Abebooks web sites. If you're dissatisfied with your purchase (Incorrect Book/Not as Described/Damaged) or if the order hasn't arrived, you're eligible for a refund within 30 days of the estimated delivery date. If you've changed your mind about a book that you've ordered, please use the Ask bookseller a question link to contact us and we'll respond within 2 business days.

Conditions d'exp�dition

Orders ship within 2 business days. Shipping costs are based on books weighing 2.2 LB, or 1 KG. If your book order is heavy or oversized, we may contact you to let you know extra shipping is required.