Creative Commons Attributions

Medical/Surgical Operative Photography by Phalinn Ooi, Creative Commons CC BY 2.0, adapted in terms of cropping and adjusting brightness and color.

NP 2DU colombia 42_lo by Pic by Neil Palmer (CIAT). Creative Commons CC BY-SA 2.0. adapted in terms of cropping from original.

Drafting by Jacon Eckert. Creative Commons CC BY 3.0

Factory By Rob Armes, GB. Creative Commons CC BY 3.0 US

Soybeans By gira Park, KR, Creative Commons CC BY 3.0 US.

Corn stover harvest by Idaho National Labratory, Creative Commons CC BY 2.0 Image courtesy of Idaho National Laboratory (INL) Bioenergy Program, adapted in terms of cropping and adjusting brightness and color.

Spent grain by Jinx!, Creative Commons CC BY-SA 2.0, adapted in terms of cropping and adjusting brightness and color.