Bildnachweis

Die verwendeten Bilder wurden von folgenden Diensten zur Verfügung gestellt:

• Fotolia:
  ioannis kounadeas, pmphoto, grafik & art, emeraldphoto, herreneck, oconner, Denis Potschien, Stas Perov, felinda, brunoJ, Corbis, Valcho, Kaja, vRoss, José 16, Juice Images, itestro, AGphotographer, silver-john, Taras Vyshnya, Hello my name is Jan, focus finder, Thomas Wöhrle, chris74, Galyna Andrushko, Oliver Klimek, Uwe Wittbrock, Andrey Ushakov, Silverpics, Dreadlock, Ronnie, Barmaliejus, bilderbox, Nando, Popova Olga, kryczka_d, Andrey Volokhatiuk, Dmitriy Kosterev, mashe, Maria Bystrova, tatyana, Rebel, Franz Pfluegl, Spencer, Gabriella88, Andre, mtsyri, mica, ExQuisine, blende40, Heike Rau, yamix, H.D. Volz, Benshot, reises, Ludmila Smite, Africa Studio, OlegDoroshin, Benshot, ThKatz, Mykola Mazuryk, phalakon jaisangat, nyul, Andrzej Tokarski, Norbert Wilhelmi, Joop Hoek, Maria Brzostowska, nature_arts, Alexander Wurditsch, Pixel3000, danielschoenen, Dusan Kostic, Alekss, marog pixcells
• Getty Images:
  Hand holding small tree in the desert - 828 488 45, Child holding a sabling in the desert - 880 290 13
• istockphotos:
  Internet shopping on a laptop - 8866254
• Panthermedia:
  Beate Tuerk, FotoAndy
• Shutterstock:
  Luis Carlos Jimenez del rio, zhu difeng, Eric Gevaert, Konstantin Sutyagin, Denis Larkin, Michal Rosenstein, Maxim Kostenko, robert paul van beets, chanwangrong, Artur Synenko, mypokcik, Baloncici, Leyla Ismet, cristi180884, Heiko Kiera, elypse, OlegDoroshin, Brian A Jackson, SergeBertasiusPhotography, Rudmer Zwerver, bonchan, PointImages, Anest
• Amazone
• Bayerischer Bauernverband