Actually Urea is made from Natural Gas and a couple of other chemicals. I think chlorine is another big component.
There is a plant in Nikiski, Alaska that manufactures it. They draw their natural gas supply from the Swanson and Cook Inlet gas fields.
I remember being told that all of these chemicals which are gasses are blown into an airtight building they gather and mix near the roof and the urea falls to the ground as flakes......almost like snow.
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.