Can natural or anthropogenic explanations of late-Holocene CO2 and CH4 increases be falsified?

Speleothem records of changes in tropical hydrology over the Holocene and possible implications for atmospheric methane

(2011) Stephen J. Burns   HOLOCENE

Holocene carbon flux histories of the world’s peatlands

(2011) Zicheng Yu   HOLOCENE

The contribution of rice agriculture and livestock pastoralism to prehistoric methane levels

(2011) Dorian Q Fuller et al.   HOLOCENE

Comparison between Holocene and Marine Isotope Stage-11 sea-level histories

(2010) E.J. Rohling et al.   EARTH AND PLANETARY SCIENCE LETTERS

Holocene carbon emissions as a result of anthropogenic land cover change

(2010) Jed O. Kaplan et al.   HOLOCENE

Climate model simulation of anthropogenic influence on greenhouse-induced climate change (early agriculture to modern): the role of ocean feedbacks

(2009) John E. Kutzbach et al.   CLIMATIC CHANGE

Carbon storage in permafrost and soils of the mammoth tundra-steppe biome: Role in the global carbon budget

(2009) N. S. Zimov et al.   GEOPHYSICAL RESEARCH LETTERS

Effect of per-capita land use changes on Holocene forest clearance and CO2 emissions

(2009) William F. Ruddiman et al.   QUATERNARY SCIENCE REVIEWS

The prehistoric and preindustrial deforestation of Europe

(2009) Jed O. Kaplan et al.   QUATERNARY SCIENCE REVIEWS

Orbital and millennial-scale features of atmospheric CH4 over the past 800,000 years

(2008) Laetitia Loulergue et al.   NATURE

High-resolution carbon dioxide concentration record 650,000–800,000 years before present

(2008) Dieter Lüthi et al.   NATURE