Since falling while running around his "C"-shaped desk and breaking his wrist, he's advocated "wrist awareness" by selling "WristStrong" bracelets. All proceeds go to the Yellow Ribbon Fund to assist injured service members and their families.

When asked how long he plans to keep wearing the band and stick with the joke, Colbert turned more serious than at any other point in the conversation. He replied firmly, "Not until the war is over."

Users who visit The Filter will initially be asked to fill out basic information and rate different genres of music and film, and also different acts and movies as well. The filter uses that information to figure out what kind of suggestions to make, and the more a fan uses the site, the more accurate the recommendations, according to the site's developers.

Gabriel recently had soul music and Nick Drake on his own Filter page. He also likes Radiohead and Icelandic band Sigur Ros.

Methane Warmed Ancient 'Snowball Earth'

According to figures cited by a GISP press release, invasive species cost the world 1.4 trillion dollars annually, or five percent of the global economy.

The United States alone spends 120 billion dollars annually to tackle more than 800 kinds of invasive pests.

WWF director general James Leape warned: "Reduced biodiversity means millions of people face a future where food supplies are more vulnerable to pests and disease and where water is in irregular or short supply.

"No one can escape the impact of biodiversity loss because reduced global diversity translates quite clearly into fewer new medicines, greater vulnerability to natural disasters and greater effects from global warming."

hyperthymestic syndrome, from the Greek words for excessive (hyper) and remembering (thymesis).

Unlike most people whose memories fade with time, much of Williams' life is etched indelibly in his mind.