Climate maps
http://www.blueplanetbiomes.org/climate.htm
Elevation map
http://asterweb.jpl.nasa.gov/images/GDEM-10km-colorized.png (zoomable version)
http://static.ddmcdn.com/gif/maps/jpg/WOR_THEM_Elevation.jpg
Wind map
https://2img.net/h/i158.photobucket.com/albums/t106/OnlyObvious/Dust_Bowl/trade_Winds.jpg
Animated wind map
http://earth.nullschool.net/#current/wind/surface/level/orthographic=-347.76,-3.28,402
Population Density Map
http://upload.wikimedia.org/wikipedia/commons/6/67/World_population_density_1994.png
Agricultural reference maps
Agricultural suitability
http://www.sage.wisc.edu/atlas/maps/suit/atl_suit.jpg
Use and transformation of land (historic)
Soil degradation
http://www.blueplanetbiomes.org/climate.htm
Elevation map
http://asterweb.jpl.nasa.gov/images/GDEM-10km-colorized.png (zoomable version)
http://static.ddmcdn.com/gif/maps/jpg/WOR_THEM_Elevation.jpg
Wind map
https://2img.net/h/i158.photobucket.com/albums/t106/OnlyObvious/Dust_Bowl/trade_Winds.jpg
Animated wind map
http://earth.nullschool.net/#current/wind/surface/level/orthographic=-347.76,-3.28,402
Population Density Map
http://upload.wikimedia.org/wikipedia/commons/6/67/World_population_density_1994.png
Agricultural reference maps
Agricultural suitability
http://www.sage.wisc.edu/atlas/maps/suit/atl_suit.jpg
Use and transformation of land (historic)
Soil degradation