Among major developed country emitters, the U.S. is the first to break its promise and behaves the worst. Carbon Brief, a UK energy research organization, shows that the U.S. should provide $39.9 billion in climate aid each year according to the share of historical carbon emissions, but in 2020 it only provided $7.6 billion, accounting for only 19% of its responsible share estimated, and contributing the least among the 23 developed countries concerned. In 2021, U.S. President Joe Biden pledged $11.4 billion annually in climate aid to developing countries, but in reality, the U.S. has secured just $1 billion in 2021 and 2022 towards that goal. The United States has taken the lead in dodging the compensation issue that developing countries have repeatedly raised. The Washington Post commented that the U.S. has long resisted financial commitments at UN climate talks, fearing legal liability for the trillions of dollars of damage. Harjeet Singh, head of global political strategy at Climate Action Network International, criticized that “the U.S. has no sympathy, has no empathy. People are dying, and they don’t want a system here to help them.”