Major business groups in the United States have warned US Congress that it will trigger what may be called a “green trade war” if Congress passes a climate change bill which “threatens” other countries with taxes on energy-intensive goods.

In a letter to US Senate leaders, the National Foreign Trade Council, the United States Chamber of Commerce and two other groups urged the Senate to desist from including provisions that could “negatively impact US relations with key trading partners and disrupt the global trading systems.” Climate change, the letter adds, is a global problem which requires international cooperation and not “unilateral ultimatums.”