Small-bore beef futures in the United States closed at $3.29 per pound, the lowest since late November, and pork futures in New York were up $1.75 per pound at $2.19 per pound.
Small-volume beef futures are a crucial ingredient in beef products that can be sold nationwide and at restaurants.
The benchmark benchmark futures for beef in the U.K. and Canada also closed at their lowest levels since late March.
Brent crude oil futures closed at a five-week low, down 0.4 percent from a week earlier, while West Texas Intermediate crude fell 0.8 percent.
Energy futures were weaker in North Dakota, where a shutdown in oil production has put the state in recession and forced many businesses to shut down.
In the second quarter, U.N. climate change officials forecast that global warming will increase the likelihood of severe droughts and wildfires in North America, South America and Australia.
“We need to accelerate the transition to clean energy to reverse the climate crisis,” U.C. Berkeley professor Peter Wadhams, a co-author of the report, said in a statement.
“It is essential that the global economy be transformed into one based on the principles of sustainability and the development of resilient economies, not on the exploitation of fossil fuels.”