The Trump administration has formally rejected the United Nations-backed "Net-Zero Framework" proposed by the International Maritime Organization (IMO), which aims to reduce global greenhouse gas emissions from the shipping sector. Secretary of State Marco Rubio officially announced the U.S. refusal to accept the plan, citing concerns that it would harm American consumers and the shipping industry. The administration characterized the framework as a hidden global carbon tax and pledged to protect U.S. interests by opposing the initiative. Furthermore, the U.S. government has threatened retaliation against IMO member countries that support the net-zero emissions plan. This move represents a clear stance against the IMO's climate initiative and signals potential diplomatic and trade tensions with countries endorsing the framework.