Tellus B

Editorial
pp. 499-499(1)

The tropospheric cycle of H₂: a critical review
pp. 500-535(36)
Authors: EHHALT, D. H.; ROHRER, F.

Vertical profiles of biospheric and fossil fuel-derived CO₂ and fossil fuel CO₂ : CO ratios from airborne measurements of Δ¹⁴C, CO₂ and CO above Colorado, USA
pp. 536-546(11)
Authors: GRAVEN, HEATHER D.; STEPHENS, BRITTON B.; GUILDERSON, THOMAS P.; CAMPOS, TERESA L.; SCHIMEL, DAVID S.; CAMPBELL, J. ELLIOTT; KEELING, RALPH F.

The H₂/CO ratio of emissions from combustion sources: comparison of top-down with bottom-up measurements in southwest Germany
pp. 547-555(9)
Authors: HAMMER, SAMUEL; VOGEL, FELIX; KAUL, MARKUS; LEVIN, INGEBORG

Seasonal variation of the molecular hydrogen uptake by soils inferred from continuous atmospheric observations in Heidelberg, southwest Germany
pp. 556-565(10)
Authors: HAMMER, SAMUEL; LEVIN, INGEBORG

Atmospheric circulation controls on precipitation isotope-climate relations in western Canada
pp. 566-576(11)
Authors: BIRKS, S. J.; EDWARDS, T. W. D.

A comment on `Vulnerability of permafrost carbon to global warming. Part I: model description and role of heat generated by organic matter decomposition' by D. V. Khvorostyanov et al. (2008)
pp. 577-578(2)
Author: KUTZBACH, L.

Reply to L. Kutzbach
pp. 579-580(2)
Authors: KHVOROSTYANOV, D. V.; KRINNER, G.; CIAIS, P.; HEIMANN, M.; ZIMOV, S. A.

ERRATUM
pp. 581-581(1)