The entire planet sweltered to the unofficial hottest day in human recordkeeping July 3, according to University of Maine scientists at the Climate Reanalyzer project.

High temperature records were surpassed on July 3 and 4 in Quebec and northwestern Canada and Peru. Cities across the US from Medford, Oregon to Tampa, Florida have been hovering at all-time highs, said meteorologist Zack Taylor. Beijing reported 9 straight days last week when the temperature exceeded 35 C (95 F).