So here's the problem
1. To reduce greenhouse gases, dont purchase fuels which have a higher greenhouse gas content than conventional fuels. This will obviously drive down carbon emissions and greenhouse gases, or at least, not increase it over and above using normal fuels.
2. To reduce dependence on the horrible middle east and other assorted countries where oil is found, get oil from your next door neighbour who is a friend and colleague. This will reduce transport costs, you can control the output better, less risk of political instability and terrorism and so on and so forth.
Unfortunately, the oil that is produced in Canada violates the first problem. And here's where all that is wrong with American politics comes to the fore. Read and weep.
All this to be taken with a grain of piquant salt!!!