 Although Australia has naturally experienced high rainfall variability and hot summers for millennia, the country has experienced an increase of nearly in average annual temperatures since 1900, decreases in average rainfall in southeastern Australia since 1990, with the country's worst recorded droughts occurring within the 21st century.The Commonwealth Scientific and Industrial Research Organisation (CSIRO) stated that on account of projected future climate change, hot days will become more frequent and hotter (very high confidence), and the time in drought is projected to increase over southern Australia (high confidence).In October 2019 David Littleproud, the Australian Minister for Water Resources, stated that he "totally accepts" the link between climate change and drought in Australia, as someone who has experienced it first hand.