our concern -- what kind of garbage is recology proposing to send to yuba county? organic or inorganic? at a november meeting, the director and inorganic, but we now know that what goes in the black box includes dog, cat, and the the waste -- baby waste. there are an estimated 120,000 dogs and 100,000 cats in san francisco. public library says there are 25,000 babies two and under. they use an average five or more diapers per day, which means 125 soil baby diapers per day going into the black box. that is a lot of organic matter produced by dogs, cats, and babies. so what? organic matter produces methane, a greenhouse gas contributing to global warming. the concentration of landfill gas must not exceed 5%. the latest site inspection report at the landfill showed 14% methane by volume. david osborne said recently to me, they are struggling with this. this, meaning the organic problems in our black box. one reason the sierra club urges the -- [bell rings] commissioner campos: thank you. next speaker. >> i am a san francisco resident. thank you, commissioners and staf

. >> reporter: hidden in the hills of these sierra nevada, gold near the south yuba river in nevada county the old 49ers mined most of it but look at what they left behind. >> it's heavy. >> reporter: it's called the washington nugget. weighing in at 100 ounces. without this rock just to give you an idea of the size of the washington nugget, and 8 pounds is the average weight of a newborn baby. >> i did scream when it pulled it out of the bag. >> reporter: fred is a geologist and he helped auction off the washington nugget. he believes it is a one in a billion find and that's why it sold for $400,000, more than twice the record market rate. >> the chance of finding big pieces of gold they're truly rare in nature so it's not likely we'll find another big one near california. >> reporter: during the gold rush high drolic mining was used here. a few miles up this same channel one man found the washington nugget on his private property. and this is his very first television interview. when you expected to find gold, you were thinking little pieces, right? >> oh, absolutely. nothing the size of

he's accused in the deaths of two yuba county women in the 1990s. the 77-year-old has yet to enter a plea. marin county's district attorney will decide whether to seek the death penalty once the attorney issue is resolved. >>> the body of a santa rosa man is back in the area this morning. his body was flown into sfo yesterday. a fleet of military veterans provided an escort to santa rosa. he was killed last month when an afghan pilot fired. he was working in the country as contractor. he'll be laid to rest saturday. >>> hundreds of registered nurses are set to protest over the cost of their health care. christie smith is live with more on this story. good morning, christie. >> reporter: good morning to you. you know, when this happens, it's going to be quite a sight. 800 nurses walking the picket line for five days. comes down to a couple things. first of all, contract talks stalled and nurses saying the hospital isn't covering their health care expenses the way they used to. at least that's the proposal. it amounts to about $4,000 and a proposed de

he's accused in the deaths of two yuba county women in the '90s. the 77-year-old has yet to enter a plea. he'll decide whether to seek the death penalty once the attorney issue is resolved. this morning, the u.s. says it is standing by ally pakistan. there are questions about whether the leaders knew osama bin laden lived in their country. today, secretary of state, hillary clinton said it's not an easy relationship between the u.s. and pakistan but it is a productive one for both countries. meanwhile, president obama will visit ground zero for the first time in his presidency today. the event will be somber. he'll lay a wreath in memory of the september 11th victims and meet with victim's family members. it comes four days after bin laden was killed. >>> warm weather and sunny skies, a great combination for people celebrating cinco de mayo. it is the fifth of may today. agencies across the bay area want to make sure you party safely. damian trujillo is live at the county jail with great advice. good morning. >> reporter: good morning, marla. if yo