smog-forming pollution than all six million cars in the region. >> when all of the sudden it was shown that we could be affecting human health, that's when the whole thing changed. that's when expansion at this port came to a grinding halt. we realized, we're going to have to eliminate health risk of port operations on the community. >> ever since that time, i think the port and nrdc have been able to move together collaboratively to try to address the air pollution problem there. >> a ship that sits at the berth spews out a ton of emissions a day. if we hook them to shoreside electrical power, there is a huge savings in emissions for the local community. we have reduced the emissions from trucks coming in and out of this port by 80%. so what is the truck of the future? it's an all electric truck with enough battery life that it can