The Biden administration announced Wednesday that it will make $4.6 billion available to help states, localities and tribes implement their climate plans. The funds represent the bulk of a $5 billion effort under the Inflation Reduction Act to help local and state governments cut their greenhouse gas emissions and air pollution. The administration has already put an additional $250 million to help them develop the plans. Biden administration officials told reporters that four states — Florida, Iowa, Kentucky and South Dakota — declined to participate; major metropolitan areas in those states did receive planning grants.