Climate change is “first and foremost a health crisis,” the medical journal The Lancet warned.
Black and Latinx people are disproportionately impacted by heat stress.
In some places, temperatures have soared to 113 degrees Fahrenheit.
Around the state, workers said they lacked air conditioning and sufficient breaks as the Pacific Northwest shattered temperature records.
Dozens of birds too young to fly jumped out of nests anyway in desperate attempts to beat the heat.
Here's what to drink, how to recognize a heat-related illness and why children are more vulnerable to heatstroke.
“If we don’t like it, then we need to work harder to reduce emissions,” warned the University of British Columbia scientist who calculated the massive toll.
The deadly heat wave was a "once-in-a-millennium" event -- but extreme heat of that intensity could become increasingly commonplace with global warming.
In Oregon alone, at least 70 people have died in connection with last weekend's record-breaking heat.
The National Weather Service said the mercury reached 109F on Tuesday in Spokane — the highest temperature ever recorded there.
Temperatures in many areas of Washington and Oregon are expected to reach up to 30 degrees above normal.
Climate change is making cities unlivable for millions. Surviving rising temperatures means tackling inequality and rethinking who cities are really for.
Other hikers were rescued as record temperatures topped 110 degrees.
“We are all experiencing rather extraordinary conditions,” Gov. Gavin Newsom said after losing over 200,000 acres to fires fueled by extreme heat and lightning.
A statewide heat wave increases risk of new blazes erupting.
A heat wave across the American Northeast and Southeast subjected cities to record-breaking temperatures on back-to-back days.
Extreme heat over Western Europe would have been "extremely unlikely without climate change," scientists say.
The Paris area hit 108.3 degrees Fahrenheit, beating the previous record of 104.8 F set in 1947.
U.S. beaches may pose a public health threat due to high amounts of fecal bacteria.
Many places facing excessive heat this weekend have no air conditioning, with cities opening shelters for people to cool off.