Will humans go extinct within 100 years?

Homo sapiens is an endangered species, according to an Australian scientist.

Will humans go extinct within 100 years? - Technology & science - Science - msnbc.com:

Is the clock of doom ticking for mankind? Yes, says an eminent 95-year-old scientist from Australia. Professor Frank Fenner — the same scientist who brought the myxomatosis virus to rabbits to control their numbers in the 1950's — is acutely aware of the impact of overpopulation and shortage of resources.

In 1980, Fenner announced to the World Health Assembly that smallpox had been eradicated, an achievement that is widely regarded as the World Health Organization's finest hour.

Now, in an interview with The Australian, the well-respected microbiologist expressed his pessimism for our future. 'We're going to become extinct,' he said. 'Whatever we do now is too late.'