Answer to car exhaust polution
I am not a big fan of the panic surrounding greenhouse gas emissions, but I love the outdoors and want our air to be kept clean and fresh. So hence I present to you a solution to all of automobile exhaust polution: the Greenbox.
I think that this is truly genius, especially if it goes mainstream and a system is put in place so that the sludge can quickly and easily be removed from the box at any gas station. I can easily picture a setup where, while pumping your gas, you hook up your greenbox and quickly empty it into holding tanks at the gas stations. The gas stations give you a discount for the gas you just bought, and they then sell the sludge en mas back to the oil companies. The oil companies turn the sludge back into gas which is later sent back out to the gas stations.
Now if we can only hook these things up to cows behinds, since livestock in America actually emits more greenhouse gases then transport.