This variability is evident in recent data from 2008-2009, 2009-2010 and 2010-2011, although no consistent trend can be identified based on data from the 1960s to the present. In parallel, mean annual temperature increases of 1.1 °C to 3.5°C are envisaged, with implications in terms of evapotranspiration rates. Increased incidences of drought are likely to result in forced socioeconomic changes in the country, with consequent indirect effects on biodiversity. A possible 33 per cent decrease in precipitation within the province d’Ouarzazate, could reduce profits from pastoralism by up to 57 per cent.