Although his apocalyptic theories have long been disproven, too-rapid population growth has nevertheless crippled the economic prospects of many developing countries and left hundreds of millions mired in poverty.
Another possible case in Virginia was quickly disproven.
"While the NHS might only prescribe homeopathy for a limited number of relatively minor ailments, it lends this disproven treatment undue credibility and legitimacy".
Further media investigations uncovered his prison record and fake university titles, though Mr Baptista da Silva's claims to have studied economics have not been categorically disproven.
The evidence of Ibn al-Shaykh al-Libi, which was later disproven, was used by George W Bush in 2002 during a hawkish speech calling for the removal of Saddam Hussein, in which he said: "We've learned that Iraq has trained al-Qaeda members in bomb-making and poisons and deadly gases".
And that's why, even after a claim has been systematically disproven" — he cites, for instance, the early work on hormone replacement therapy, or claims involving various vitamins — "you still see some stubborn researchers citing the first few studies that show a strong effect.
The move came two days before the commission was scheduled to hear crucial evidence that Willingham was put to death, in 2004, based on arson theories that have since been disproven by modern science.
In fact, in denying adults (even young adults) the opportunity to participate as Scout leaders, the new policy reinforces long disproven misconceptions that adult gays and lesbians are child predators or otherwise immoral, or would recruit children into homosexuality.
Dr. Golish, the former chief of sleep medicine at the Cleveland Clinic, said that the cancer link may not prove to be as strong as the well-documented relationship between sleep apnea and cardiovascular disease, "but until disproven, it would be one more reason to get your apnea treated or to get it diagnosed if you think you might have it".
Mr. Spitzer, for his part, said Wednesday on his prime-time show on CNN that "even if disproven, the reputational harm is never undone" from an accusation like the one leveled at Mr. Strauss-Kahn.
"The charges have not all been disproven by any means," Leslie Sponsel pointed out.
