John Anderson (R) helps his 93-year-old great uncle Lyman Howe after Howe finished combining corn on a family farm on October 22, 2015 near Burlington, Iowa. Howe, who has farmed his entire life, now lives in a nursing home but his family picks him up each day so he can continue to work on the farm. According to the National Corn Growers Association, the overall corn crop is on track to have the 2nd highest average yield on record. Photo credit: Scott Olson / Getty Images.
A big flock of sheep is led by the center of Madrid on October 25, 2015. Shepherds leading about 2000 sheep arrived to the capital, called by Transhumance and Nature association, to promote the conservation of the ancient paths of transhumance (moving flocks from winter to summer pastures) dating back some 8,000 years. Photo credit: GERARD JULIEN / AFP / Getty Images.
Finished animal feed pellets, a by-product of sugar beet, pass along a conveyor belt at the British Sugar Plc factory in Bury St Edmunds, U.K., on Wednesday, Oct. 21, 2015. Lower European sugar prices this year have had disparate results -- easing input costs for European-based packaged-food makers, while hurting sugar producers' sales. Photo credit: Chris Ratcliffe / Bloomberg via Getty Images.
Jean-Noel Pelette (L) and his wife Chantal pick flowers of Crocus Sativus, the saffron crocus, on October 20, 2015 in Ambares-et-Lagrave, near the southwestern city of Bordeaux. Saffron is derived from the dried stigma of the Crocus Sativus' flower. Photo credit: JEAN-PIERRE MULLER / AFP / Getty Images.
In this photo taken on October 20, 2015 shows a duck standing on a floating debris next to a submerged house due to heavy rains brought about by typhoon Koppu, in Jaen town, Nueva Ecija province north of Manila. Typhoon Koppu unleashed head-high floods last week, wiping out vast swathes of farmlands, sinking deeper poor farmers into a quicksand of crushing debt in the rice-growing central region. Photo credit: TED ALJIBE / AFP / Getty Images.
A Sri Lankan ethnic Tamil paddy farmer uses tractor as prepare field for cultivate on October 25, 2015 in Mallavi, Sri Lanka. Sri Lankan Prime Minister, Ranil Wickremesinghe, seeks international assistance ahead of a donor conference for the social and economic development of the war ravaged areas in the country. Photo credit: Buddhika Weerasinghe / Getty Images.
A general view of atmosphere at The New York Times Food For Tomorrow Conference 2015 at Stone Barns Center for Food & Agriculture on October 20, 2015 in Pocantico Hills City. Photo credit: Neilson Barnard / Getty Images for the New York Times.