The 3.4 per cent fall in greenhouse gas emissions in the US in 2012 has been linked  to low natural gas prices, helped by a shale gas boom and a shift from coal, a mild winter and greater efficiency in transport. Photograph:  John Giles/PA Wire

Industrialised nations’ greenhouse gas emissions fell by 1.3 per cent in 2012, led by a US decline to the lowest in almost two decades with a s(...)

Mountain peaks in the Bernese Alps protrude above a hazy layer of air as scientists have uncovered strong evidence that beginning in the 1860s, soot sent into the air by a rapidly industrialising Europe caused the abrupt retreat of mountain glaciers in the European Alps. Photograph: University of Colorado/PA Wire

Top climate scientists will blame mankind more clearly than ever for global warming next week but may struggle to drive home the message in a report t(...)