let's start with tim o'connor.ayout the scope of what has taken place so far. ,hen we last talked about this the governor had not declared a state of emergency. so talk about what has happened since. >> of course we know this leak has resulted in a state of emergency, really since day one. and since the order by the governor, the pollution has continued to spew out of the well like a volcano up above the community. even after being reduced by over 60%, this still has the climate change relevance and moreficance of having pollution than all of california's oil and gas production emissions combined. it is really quite phenomenal. nermeen: tim o'connor, could you talk about what some of the health effects of an of this week -- leak? >> thousands upon thousands of people throughout porter ranch in the san fernando valley have been feeling the effects of this leak for many months. and will continue to do so for many months more. in addition to having a cute impacts -- nosebleeds and headaches and really bad problems rig

. >>> for more, i want to bring in tim o'connor of the environmental defense fund.ranch gas leak. this has been going on since october. as i understand it, is it true they don't know exactly where the leak is? >> well, the leak is somewhere underground, probably 1,000 feet deep, and it's really not creating a leak, it's a volcano of methane pollution putting out more climate change gas than what many thought was possible. >> why can't they find the leak? it sounds silly, but stop it up, stop it. >> like the deepwater horizon took 87 days fix and this will take many more weeks past that mark. they're drilling a relief well starting 1,200 feet away to hit the well that's leaking 8,000 feet underground so they can pump in mud and cement. it's complicated and dangerous process. >> looking at the big black plume. it looks scary. how bad is the air quality now? >> well, amount of methane and climate change gas coming out of 0 the leak is undermining years of progress that california's been making to cut methane pollution. when you look at it because methane is 84 times th