The hamburger is suddenly embroiled in a political dispute.

Supporters of the Green New Deal, according to a Republican talking point, are anti-patty. “They want to take away your hamburgers,” Sebastian Gorka, a former adviser to President Trump, said last week at the Conservative Political Action Conference.

Other Republicans, including Mr. Trump, have made similar claims. But the Green New Deal, a broad climate policy proposal, makes no mention of hamburgers, cows or beef.

Instead, the resolution, introduced by Representative Alexandria Ocasio-Cortez of New York and Senator Edward J. Markey of Massachusetts, underscores the role of agricultural emissions in climate change.