The United States will oppose the United Nations’ efforts to set up a separate funding mechanism to compensate developing countries for “loss and damage” caused by global warming.

Indian newspaper The Hindu obtained a U.S. State Department internal memo to delegates at the U.N.’s climate conference in Warsaw, ordering them to oppose charging rich countries “compensation or reparation” for historic greenhouse gas emissions — essentially making rich countries, like the U.S., pay for emissions that have allegedly raised global temperatures.

“It’s our sense that the longer countries look at issues like compensation and liability, the more they will realize this isn’t productive avenue for the [U.N. Framework Convention on Climate Change] to go down,” the State Department document reads.