Qatar was awarded football's premier international competition in December 2010 but the decision has been marred by controversy surrounding corruption and the country's suitability to host.
"People complain about it being too hot. I've played World Cup qualifiers there in June, and it is hot. I played a game in Oman in June one year and it was 43 degrees," Schwarzer told the Leaders in Sport conference in London,
"Something needs to happen to stop games at that time of year. It is just ridiculous, and it will only happen once probably not just one person, but two or three people drop dead.
"That's unfortunate, but that's probably the only way they will do anything. It's ridiculous, it really is ridiculous to be playing at that time of year and I don't why there's even a debate.
"A committee went out there and said it was not safe to play, yet they were still awarded it."
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