PHOTOS Sweltering summer heat

Boys cool down in a portable swimming pool in al-Duwaiqa neighborhood of Cairo, July 29. AFP-Yonhap

Children cool off in a fountain at VDNKh (Exhibition of Achievements of National Economy) while enjoying the weather at sunset in Moscow, July 25. AP-Yonhap

A child stands beneath a waterfall while taking a break from the heat in the Yards Park Canal Basin in Washington, DC., July 17. The U.S. capital is under a heat advisory as summer temperatures soar. AFP-Yonhap

People swim at the Allied Veterans Memorial Swimming and Wading Pool as temperatures soar past 90 degrees Fahrenheit (high 30s Celsius) in Everett, Mass. July 29. AFP-Yonhap

A boy dives into the Euphrates river to cool off during a heat wave in the Al-Midaina District in the north of Iraq's southern province of Basra, July 30. AFP-Yonhap

A man stops to cool down in the water coming out of an open fire hydrant in the Harlem neighborhood of Manhattan as excessive heat continues in New York City, July 17. UPI-Yonhap

A taxi driver cools down by getting splashed with water in Tehran, Iran, July 22. Unrelenting high temperatures triggered water and electricity shortages across large parts of Iran, with several cities issuing yellow weather alerts. Xinhua-Yonhap

People cool down with cold drinks and ice cream on a street in Tehran, Iran, July 22. Xinhua-Yonhap