A dog drinks water at a fountain during a hot summer day in Brussels, Belgium, July 24, 2019.
The flag of the United Nations flutters next to a huge thermometer showing more than 36 degrees Celsius,mounted to a wall of the headquarters of the United Nations Framework Convention on Climate Change (UNFCCC) in Bonn, Germany July 23, 2019.
People cool off in the futuristically designed 'Badeschiff' (Pool ship) on the Spree river as temperatures reach new record highs in Berlin, Germany, July 24, 2019.
Children refresh in a fountain next to the Chancellery during a hot summer day in Berlin, Germany, July 23, 2019.
A temperature indicator outside of a pharmacy indicates 42 degres Celsius (107.6 Fahrenheit) in Brussels, Belgium, July 25, 2019.
People drink and fill up their bottles from a fountain on a hot summer day in Brussels, Belgium, July 25, 2019.
An elderly woman covers her head from the sun as she begs for money in central Kiev, Ukraine July 26, 2019.
A child refreshes in a fountain next to the Chancellery during a hot summer day in Berlin, Germany, July 23, 2019.
A child runs under water sprinklers during a heat wave in Vienna, Austria July 23, 2019.
People cool off in the sea on a hot summer day as a ferry sails past the beach in Sangatte, France, July 24, 2019.
People cool off during a sunny day at the Rijksmuseum fountain in Amsterdam, the Netherlands, July 25, 2019.
A woman shields herself from the sun with a jacket on a hot summer day in Cologne, Germany, July 25, 2019.
A man cools off in the sea on a hot summer day as a ferry sails past the beach in Sangatte, France, July 24, 2019.
Guests enjoy the water, as the thermometer showed 30 degrees Celsius, at Vejers Strand, beach in South Western Jutland, Denmark, July 24. 2019. John Randeris/Ritzau Scanpix via REUTERS
A man cools off under water sprinklers during a heat wave in Vienna, Austria July 23, 2019.
Tourists use umbrellas to protect themselves from the sun during a visit at the Empress Maria Theresia monument in Vienna, Austria July 23, 2019.
A man rides an electric scooter under water sprinklers during a heat wave in Vienna, Austria July 23, 2019.
Young children play in a water fountain on a hot summer day in Brussels, Belgium, July 23, 2019.
A boy plays with water in the fountain at the Places des Nations near the United Nations in Geneva, Switzerland, July 24, 2019.
A girl plays with water in a fountain during a hot summer day in Brussels, Belgium, July 24, 2019.
A girl plays with water in a fountain on a hot summer day in Brussels, Belgium, July 24, 2019.
A boy dives from a slide into the pool as temperatures reach new record highs at a public pool in Hanau, near Frankfurt, Germany, July 24, 2019.
A construction worker cleans his face as he renew the tarmac of a street with bitumen while temperatures reach new record highs in Berlin, Germany, July 25, 2019.
A boy plays with water in a fountain on a hot summer day in Brussels, Belgium, July 25, 2019. REUTERS/Yves Herman TPX IMAGES OF THE DAY - RC1C90A1D4D0
Construction workers renew the tarmac of a street with bitumen as temperatures reach new record highs in Berlin, Germany, July 25, 2019.
A man drinks water from a fountain on a hot summer day in Brussels, Belgium, July 25, 2019. REUTERS/Johanna Geron - RC1AB77C6270
A man carries a ventilator on a hot summer day in Cologne, Germany, July 25, 2019.
Children play in a water fountain on a hot summer day in Brussels, Belgium, July 25, 2019.
Children play in a water fountain on a hot summer day in Brussels, Belgium, July 25, 2019.
Sunbathers lay on a green as they enjoys the hot weather in London, Britain July 25, 2019.
A man drinks water from a fountain on a hot summer day in Brussels, Belgium, July 25, 2019.
A boy plays with water in a fountain on a hot summer day in Brussels, Belgium, July 25, 2019.
People cool off as temperatures reach new record highs at the Dante public pool in Munich, Germany, July 24, 2019.
People cool-off in the Mediterranean sea in Calella, Spain July 24, 2019.
A fish farmer recues fishes from the almost dried up Landes pond in Lussat, central France, as the hot weather prolongs drought conditions in France, July 25, 2019.
A young man jumps from a diving platform into Lake Zurich during hot summer weather in Zurich, Switzerland July 25, 2019.
People shield themselves from the sun with an umbrella on a hot summer day in Cologne, Germany, July 25, 2019.
Record-breaking heat wave bakes Europe
