The early Holocene climate is chracterized as an interglacial boundary condition without substantial human influence. Here we present a high-resolution CH4
time series during the early Holocene for investigating a natural control process. The results show that changes in the ITCZ position and Asian summer monsoon intensity were able to induce ~ 20 to 40 ppb CH4
variability in millennial time scale by changing low latitude emission, while the contribution of boreal sources increased gradually.