10/20/2010 02:04 pm ET Updated May 25, 2011

Bill Maher's New Rule: Stop Pretending Like Threatened Coral Reefs Don't Affect You (VIDEO)

According to a recent U.N. report (PDF), the "economic invisibility of nature is a problem" for humankind.

Despite the fact that as many as 500 million people worldwide depend on coral reefs for fisheries and tourism, conservation of the reefs isn't a big issue in mainstream media--even as the habitat faces "warmer and more acidic seas as a result of climate change."

On this week's "Real Time," Bill Maher breaks it down and explains why saving coral reefs should matter to "real Americans."