The climate of the Earth / John Lockwood -- Chemical evolution of the atmosphere / Richard Wayne -- Atmospheric energy and the structure of the atmosphere / Hugh Coe -- Biogeochemical cycles / Dudley Shallcross -- Tropospheric chemistry and air pollution / Paul Monks and Roland Leigh -- Cloud formation and chemistry / Peter Brimblecombe -- Particulate matter in the atmosphere / Paul I. Williams and Urs Baltensperger-- Stratospheric chemistry and ozone depletion / Rob MacKenzie -- Boundary layer meteorology and atmospheric dispersion / Janet Barlow -- Urban air pollution / Jes Fenger -- Global warming and climate change science / Atul Jain.