A recent study from the University of British Columbia reveals that summer is lengthening globally, increasing by about six days every decade. Sydney is experiencing the most significant change, with summers adding approximately 15 days each decade since 1990. By 2023, Sydney’s summer spans 125 days—up from 76 days in 1990. The trend shows summers are beginning and ending more abruptly, which could impact agriculture, energy needs for cooling, and increase risks of wildfires and droughts.
Lead researcher Ted Scott highlights that this shift disrupts traditional expectations for seasonal patterns, complicating planning for policymakers. The study indicates summer temperatures are expanding 50% faster than prior studies found. Other cities also report substantial changes in summer length, including Minneapolis (30 additional days) and Toronto (27 days). Advocates like Emma Bacon emphasize that these findings confirm widespread feelings regarding changing climate conditions, reflecting the stark differences between past and future summers.
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