Global Heating Emergency now - Scott Willis - First the "heat dome," with temperatures in the mid-to-high 40s Celsius in many parts of western North America for up to a week (49.6 C in Lytton, B.C.). Then, when the forests were tinder-dry, came the wildfires (which wiped Lytton out). From northern California to northern B.C., the records were being broken every day.

The extreme temperatures were unprecedented, but the meteorologists had an explanation of sorts: a "heat dome" that trapped hot air in the same area for a long time while the heat kept rising. a new normal in which killer heat waves become regular events.

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