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Bildnachweise

Heater © hiphoto39 / www.fotolia.de
Energie + Umwelt - Solarstrom
Solar panel on blue sky background © ivan kmit / www.fotolia.de
Hintergrund aus alten Baumstämmen © Anselm Baumgart / www.fotolia.de
Energie + Umwelt - Wasserfilter
Drink water pouring in to glass over sunlight and natura… © singkham / www.fotolia.de
Entspannen im Garten © ehrenberg-bilder / www.fotolia.de
Naturfaser
© Hanoi Photography / www.stock.adobe.com
Humusboden
© Arthon / www.stock.adobe.com
© xuanhuongho / www.stock.adobe.com
© jeson / www.stock.adobe.com
© ManuPadilla / www.stock.adobe.com
© Yosef / www.stock.adobe.com
© Love You Stock / www.stock.adobe.com
© rawpixel.com / www.freepik.com
© Greg Rosenke / www.unsplash.com
© lovelyday12 / www.stock.adobe.com