When you say that at this point in time there aren't other options, that's why this bill is important. There really is, for bigger farms, no other option than to use natural gas or propane in grain dryers. That's why this exemption for a big farm is so important.
Evidence of meeting #28 for Agriculture and Agri-Food in the 43rd Parliament, 2nd Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was emissions.
A recording is available from Parliament.