[Elizabeth Shackelford] Climate change's deadly heat

America celebrated its 250th year of independence under a historic heat dome that shattered more than 148 records for daily high temperatures across the Eastern United States.

The nation’s capital recorded the hottest Fourth of July on record at 40 degrees Celsius.

Philadelphia, where our Declaration of Independence was written, recorded three days in a row above 38 C for the first time ever.

The heat last week was so severe that parades and events across the country were canceled, including the ...