Agriculture

In this 2014 photo provided by Ryan Parker, two pigs consume discarded milk at Nights And Weekends Homestead in Newport, Maine. The state of Maine has recently clarified rules about giving food waste to pig farms. (Photo courtesy Ryan Parker)

In this photo taken Tuesday, Oct. 8, 2019, Parmigiano Reggiano Parmesan cheese wheels are stored in Noceto, near Parma, Italy. U.S. consumers are snapping up Italian Parmesan cheese ahead of an increase in tariffs to take effect next week. The agricultural lobby Coldiretti on Friday, Oct. 11, 2019, said sales of both Parmigiano Reggiano and Grana Padano, aged cheeses defined by their territory of origin, have skyrocketed by 220% since the higher tariffs were announced one week ago. (AP Photo/Antonio Calanni)

In this Oct. 7, 2019 photo, Scott Allen, who runs Pettit Creek Farms in bone-dry Bartow County, Ga., poses for a photo. Allen says the small streams normally used to provide water for his camels, kangaroos, zebras and other animals have dried up so they are forced to rely on other water sources. Allen says the animals are fine, but the dust is relentless since there's been no significant rain during the past two months. (AP Photo/Jeff Martin) (AP Photo/Jeff Martin)

In this Oct. 5, 2019 photo, Daniel Leonard and his father Joe, right, stand near a heap of lumber on their family's property. The massive storm killed more than two dozen people in northern Florida, destroyed hundreds of homes and brought catastrophic damage to the region’s timber industry. (AP Photo/Bobby Caina Calvan)

This August 2019 photo released by the National Oceanic and Atmospheric Administration Fisheries (NOAA) shows northern fur seal pups standing on a beach on Bogoslof Island, Alaska. Alaska's northern fur seals are thriving on an island that's the tip of an active undersea volcano. Numbers of fur seals continue to grow on tiny Bogoslof Island despite hot mud, steam and sulfurous gases spitting from vents on the volcano. (Maggie Mooney-Seus/NOAA Fisheries via AP)

FILE - This May 6, 2016 file photo shows the logo of the Airbus Group in Suresnes, outside Paris. The World Trade Organization says the United States can impose tariffs on up to $7.5 billion worth of goods from the European Union as retaliation for illegal subsidies to European plane-maker Airbus — a record award from the trade body. (AP Photo/Michel Euler, File)

In this Aug. 21, 2019 photo, instructor Chris Powicki speaks during an interview at Cape Cod Community College in West Barnstable, Mass. Powicki's Offshore Wind 101 classes have drawn nuclear and marina workers, engineers, young people and others hoping for good-paying wind jobs as an alternative to tourism jobs. But as Trump has made clear how much he hates wind turbines, all the offshore wind projects, including the nation's first utility-scale offshore wind project, an 84 turbine, $2.8 billion wind farm slated to rise 15 miles off Martha's Vineyard, have stalled. (AP Photo/Elise Amendola)

California citrus growers, packers and researchers gather for the opening of a new secure lab dedicated to the search for a cure for a deadly citrus-killing disease in Riverside, Calif., Thursday, Sept. 26, 2019. Growers hope the lab will speed up the search for a cure to the disease, which is spread by a tiny insect and has ravaged groves in Florida and abroad. The lab will be run through a partnership with University of California, Riverside. (AP Photo/Amy Taxin)

This Thursday, Sept. 19, 2019, photo shows a spotted lanternfly at a vineyard in Kutztown, Pa. The spotted lanternfly has emerged as a serious pest since the federal government confirmed its arrival in southeastern Pennsylvania five years ago this week. (AP Photo/Matt Rourke)

FILE - This June 25, 2019 file photo shows the sign outside a McDonald's restaurant in Pittsburgh. McDonald’s is finally taking a nibble of plant-based burgers. In a very limited test in Canada, McDonald’s said Thursday, Sept. 26 that it’s introducing the PLT, or the plant, lettuce and tomato burger. It will be available for 12 weeks in 28 restaurants in Southwestern Ontario by the end of the month. (AP Photo/Gene J. Puskar, File)