In some parts of the U.S. and the world this week, heat has been extreme.
Here are five places that have made headlines for dealing with the hot weather.
New York City
Parents of children who attend schools in New York City were warned their students would be riding on extremely hot school buses as temperatures rose to the mid-90s. According to one report, some of them would be commuting on those buses as long as two hours. The city saw its hottest day of the year on Wednesday when the temperature hit 96 degrees. The high temps aren't as significant as the longevity of the heat wave.
The Middle East
A four-day holiday began Thursday in Iraq as temps climbed to 123 degrees, and people were forced to conserve energy, sometimes by losing power. At one point this week the "feels-like" temp, according to weather.com, was 159 degrees. In Iran, the City of Bandar Mahshahr is possibly challenging the all-time global record-high heat index by aiming for 164 degrees today, according to Mashable.
While Toronto's temps may not seem extreme to some, a heat alert was issued when they reached the high 80s on Thursday, according to CBC News. High humidity factored into the extreme heat alert. Seven cooling centers were opened there, CBC reported.
Storm Shield video | Water is important in hot weather:
The northwestern part of the U.S. has had one of the hottest July months on record, and the City of Portland hit temperatures not reached since 2009. The city will reach the 100s today and stay in the high 90s through the weekend.
— The Weather Channel (@weatherchannel) July 31, 2015
Police in this Oregon city said three children were left by moms in hot cars just on Wednesday. According to Fox 12 in Oregon, all of the children were in distress when discovered unattended and overheated. (A "sweat-soaked" toddler was also rescued from a hot car at a Costco in New Jersey this week.)