In the tape, aired in part on Al-Jazeera television Friday, bin Laden warns of the dangers of climate change and says that the way to stop it is to bring "the wheels of the American economy" to a halt.
He says the world should "stop consuming American products" and "refrain from using the dollar," according to a transcript on Al-Jazeera's Web site.
The new message, whose authenticity could not immediately be confirmed, comes after a bin Laden tape released last week in which he endorsed a failed attempt to blow up an American airliner on Christmas Day.
