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The Planetary Report
Riders on the Earth Together On the Cover: When seen from space, Earth—with its ultramarine oceans, green and tan land masses, and swirling white clouds—looks like no other planet in our solar system. This spectacular image of our "blue marble" is the most detailed true-color image of Earth to date. Using a collection of satellite-based observations, scientists stitched together months of data on the land, oceans, sea ice, clouds, and even city lights into a seamless true-color mosaic of every square kilometer of our planet. This portrait of Earth's Western Hemisphere shows North America, Central America, and the top of South America.
NASA Goddard Space Flight Center/United States Geological Survey/Defense Meteorological Satellite Program (city lights)

Volume 28, number 4
July/August 2008

Riders on the Earth Together

Download this issue as a PDF
(Planetary Society members only)

Planet Earth Special Issue with Guest Editor Charles F. Kennel

Contents

4 Earth Is, After All, a Planet: Charles F. Kennel and Louis D. Friedman set the stage for this special issue of The Planetary Report.

6 The Earth's Changing Environment As Seen From Space: Michael D. King looks at global climate change from orbit.

12 Connecting Policy and Science: The Intergovernmental Panel on Climate Change: Richard C. J. Somerville discusses the IPCC's latest report.

18 As Riders on the Earth Together: Monitoring Our Changing Planet: Berrien Moore III lays out some of the imminent dangers of climate change on Earth.

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