Fluidized bed coal combustors emit much higher concentrations of nitrous oxide (N2O) than do most other combustion systems. This is of concern because N2O is highly stable in the atmosphere, and may contribute to both the greenhouse effect and to stratospheric ozone depletion. In this article laboratory results are presented on N2O removal by the reburning (i.e., afterburning) method. The destruction of N2O is observed during contact between hot flue gases containing N2O and various reburning fuels. A laboratory combustion reactor is used to sequentially generate the hot combustion gas, and to put this gas in contact with N2O and reburning fuel under well-characterized conditions. The initial N2O in the primary combustion products is between 200 and 350 ppmv (dry). The temperature of the primary combustion products is varied between 1080 and 1370 K, and the oxygen level of these gases is varied between 3.3 and 4.8% (dry). Five reburning fuels are tested. The rank order of reburning effectiveness (based on equal heat input by the reburning fuels) is H-2 > CH4 > C2H4 and C2H6 > CO. Experiments are also performed with the primary combustor operated fuel rich. Without any reburning fuel added, removal of large amounts of N2O are obtained when the fuel-air equivalence ratio of the primary combustion is about 1.1. The experimental results are presented, discussed, and compared to chemical kinetic modeling. Also, some discussion of the practical implications is presented.