The U.N. hadn't known the size of the reserve -- about a year's worth -- when it gave exemptions to make ozone-depleting methyl bromide.

By Marla Cone
Los Angeles Times

The United States has stockpiled millions of pounds of methyl bromide, a pesticide that depletes the ozone layer, according to newly public documents — information that could create a stir during international negotiations next month, when the Bush administration seeks permission to produce more.