Heat waves broke records around the world this week. While Burbank airport in California touched 114 degrees, Montreal in Canada recorded a high of 97.9 degrees. In Glasgow, Scotland, the temperature was a record-breaking 89.4 degrees on June 28 and a new world record was set off the coast of Oman, where the temperature never dropped below 108.7 degrees for 24 hours. Hari Sreenivasan reports.

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