Actor Matt Damon accepted the ALS Ice Bucket Challenge but put his own philanthropic spin on it, using toilet water to highlight his own charity, Water.org, which works to provide clean water worldwide.
Damon points out that dumping clean water over one's head during a drought in California also is wasteful.
"Keep in mind that the toilet water we have in the West is actually cleaner than the water that most people in the developing world have access to," Damon said in his YouTube video. "So as disgusting as this may seem, hopefully this will highlight the challenge."
After finishing his challenge, Damon challenged actor George Clooney, singer Bono and New England Patriots quarterback Tom Brady.
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As of Tuesday, the ALS Association has raised $88.5 million for research.