London Named Sweatiest Place in U.K., as People Compare Temperature to Those in Mordor

London has been named the sweatiest place in the U.K., as temperatures in the capital rose to 86 degrees this week—much to the amusement of residents in far sunnier climes.

Thanks to a clammy combination of the London Underground transport system, the high concentration of people and the recently increased temperatures, research conducted by Appliances Direct air conditioning company says Londoners are suffering from the heat more than people elsewhere in the U.K.

The heat wave in the U.K. saw the beginning of the week named 'meltdown Monday' in the capital, as office workers struggled with the high temperature, which is set to keep rising this week, The Metro reported.

On social media, Londoners shared memes about the sudden jump in temperature, as England got warmer than Los Angeles and the Bahamas, with several people comparing the U.K. to the fiery pits of Mordor from Lord of the Rings.

Public Health England was prompted to put out a warning about the heath dangers posed by the heat wave.

A spokeswoman from the U.K.'s Met Office told The Guardian: "Heat wave is a funny term—we don't really have a definition of it in the U.K.—but none of us can deny it has been a prolonged period of hot weather, and night-time temperatures have been quite unusually high, which can also be the cause of potential health problems, as well as a lot of restless nights."

The heat wave in Britain has, however, been roundly mocked on social media by people in other countries around the world, who fail to understand how temperatures in the 80s qualify as a heat wave.

Meanwhile, in the U.S. 43 flights have been canceled and a number delayed due to the heat in Phoenix, Arizona, where the mercury is threatening to reach 120 degrees, the Associated Press reported.