geo227-fig-0004

Collage from the Blue Marble, photograph of the Earth, taken by the crew of the Apollo 17 spacecraft in 1972 and a global map realised by the German Climate Calculation Center Source: Blue Marble: image courtesy of NASA Johnson Space Center; Red Globe: DKRZ, 2014. Copyright 2014 DKRZ. Accessed via http://onlinelibrary.wiley.com/doi/10.1002/geo2.27/full