Canberra climate scientists have warned record-breaking temperatures of nearly 50 degrees recently experienced in parts of the northern hemisphere could soon become the norm during Australian summers.

While long-range forecasts aren't yet available for the upcoming Australian summer, experts have said conditions overseas - where temperature records were broken by several degrees - would become part of annual weather patterns due to climate change.

Parts of Canada experienced historic heatwaves, with temperature records smashed by more than 20 degrees in some areas as the mercury rose to nearly 50 degrees.

Meanwhile in Siberia, temperatures in parts of the Arctic Circle reached unprecedented levels, rising above 30 degrees in some areas.

Read the full article on The Canberra Times website, featuring Emeritus Prof Will Steffen