These heat waves, occurring over the last several decades, have caused the greatest number of deaths, according to world meterorological organizations.
Deadliest Heat Waves
![In this 2003 file photo, the Ibardin lake in southern French was almost dry due to a heat wave that killed 71,000 people, making it the most deadly heat wave in the world to date. ](https://gdb.voanews.com/722182f9-c45d-4854-a252-a817779952a0_w1024_q10_s.jpg)
1
In this 2003 file photo, the Ibardin lake in southern French was almost dry due to a heat wave that killed 71,000 people, making it the most deadly heat wave in the world to date.
![A heat wave in Russia in 2010 left more than 55,000 people dead.](https://gdb.voanews.com/d4edb588-fd5a-43f2-8970-9f14fdedea00_w1024_q10_s.jpg)
2
A heat wave in Russia in 2010 left more than 55,000 people dead.
![In 2006, Europe had about 3,418 deaths directly attribed to the heat wave.](https://gdb.voanews.com/337c06cf-c19c-47bb-a557-28dd02cba692_w1024_q10_s.jpg)
3
In 2006, Europe had about 3,418 deaths directly attribed to the heat wave.
![In 1998, about 2,541 deaths in India were attributed to the heat wave.](https://gdb.voanews.com/2aacaefc-badd-4ca2-b8a2-856396307235_w1024_q10_s.jpg)
4
In 1998, about 2,541 deaths in India were attributed to the heat wave.
![An Indian auto rickshaw driver rests on a hot summer day in Hyderabad, India, May 25, 2015. So far, more than 1,826 deaths have been attributed to the heat wave.](https://gdb.voanews.com/3f841a20-f861-4521-ac4d-f6f944de77d8_w1024_q10_s.jpg)
5
An Indian auto rickshaw driver rests on a hot summer day in Hyderabad, India, May 25, 2015. So far, more than 1,826 deaths have been attributed to the heat wave.