Heatwave

A Pakistani youth, cools off under a water supply pipe, during a sudden heavy rain fall after days of scorching temperatures due to a heat wave, in Islamabad, Pakistan, Thursday, Aug. 7, 2014.  (AP Photo/Muhammed Muheisen)

Muhammed Muheisen/AP

A Pakistani youth, cools off under a water supply pipe, during a sudden heavy rain fall after days of scorching temperatures due to a heatwave, in Islamabad, PakistanRead more

Sunrise Over The Somerset Levels...SOMERSET, UNITED KINGDOM - SEPTEMBER 04:  The dawn sun begins to clear the mist and fog lingering in fields close to the city of Wells on September 4, 2013 in Somerset, England. Parts of the UK are set to enjoy a late summer heatwave today, with temperatures possibly reaching 28C in central, eastern and southern England, with temperatures predicted to climb even higher tomorrow.  (Photo by Matt Cardy/Getty Images)

Matt Cardy/Getty

The sun begins to clear the mist and fog lingering over fields close to the city of Wells in Somerset, England.

People enjoy a sunny day at the Zalew Zegrzynski lake near  Warsaw, Poland, Thursday, Aug. 8, 2013, as the temperature in the shade reached 38 degrees Celsius (100,4Fahrenheit).

Alik Keplicz/AP

People enjoy a sunny day at the Zalew Zegrzynski lake near Warsaw, Poland, on Thursday, as the temperature in the shade reached 38°C

A man puts up a fan to block off the strong sun in the afternoon heat at the Bund, one of the most popular tourist spots in the city, in Shanghai, China, Wednesday, Aug. 7, 2013. Hot weather has set in with temperatures rising up to 40 degrees Celsius (104 degrees Fahrenheit) in Shanghai. (AP Photo/Eugene Hoshiko)

Eugene Hoshiko/AP

A man puts up a fan to block off the strong sun in the afternoon heat at the Bund, one of the most popular tourist spots in the city, in Shanghai, ChinaRead more

A boy cools off in a fountain at a park in Shanghai, China, Thursday, Aug. 1, 2013.  Hot weather has set in with temperatures rising up to 40 degrees Celsius (104 degrees Fahrenheit) in Shanghai.

Eugene Hoshiko/AP

A boy cools off in a fountain at a park in Shanghai, China on Thursday. Hot weather has set in with temperatures rising up to 40 degrees Celsius (104 degrees Fahrenheit) in Shanghai.

Guenter Bosch opens windows in his loft, where he keeps pigeons, in Duisburg, Germany, to improve airflow during the heatwave.

Frank Augstein/AP

Guenter Bosch opens windows in his loft, where he keeps pigeons, in Duisburg, Germany, to improve airflow during an interlude in the heatwave

A child enjoys a fountain in Bucharest, Romania, Tuesday, July 30, 2013, shortly before a thunderstorm, at the end of a torrid day. Southern Romania is affected by a massive heatwave with temperatures of up to 40 Centigrade (104 Fahrenheit) in some areas.

Vadim Ghirda/AP

A child enjoys a fountain in Bucharest, Romania, shortly before a thunderstorm, at the end of a torrid day on Tuesday. Southern Romania is affected by a massive heatwave with temperatures of up to 40 degrees Celsius in some areas.

Children play in a dam to cool off as a heatwave strikes Sofia on July 29, 2013. Temperatures in the Balkan country reached 39 degrees Celsius on Monday.

Nikolay Doychinov/AFP

Children play in a dam to cool off as a heatwave strikes Sofia. Temperatures in Bulgaria reached 39 degrees Celsius on Monday.

A boy cools off in a fountain at a park in Shanghai, China

Eugene Hoshiko/AP

A boy cools off in a fountain at a park in Shanghai, China. Hot weather has set in with temperatures rising up to 40 degrees Celsius in Shanghai.

People enjoy the sun amongst the beach chairs at Heringsdorf on Usedom island, Germany.

Michael Kappeler/EPA

Sunbathers relax among the beach chairs at Heringsdorf on Usedom island, Germany.