I'll try to.
Accidental spills and discharges happen daily in Arkansas and Pennsylvania--not the blowouts experienced in the Gulf of Mexico, but truck accidents, valve failures, tank leaks, and pipeline failures. These are daily occurrences in shale development activities. Perhaps the most important area of technological development that could diminish those risks is recycling as much of the return fluids as possible so the total volume of waste fluids that need to be transported from a drilling pad to the ultimate site of disposal can be reduced. It's all a matter of risk. If you reduce the truck traffic, you reduce the total volume and the risk of accidents.
Recycling in the U.S. is in its infancy. There are two types of recycling. One can hopefully reuse some of the return fluids in subsequent wells. Very few of the companies operating in New York, Pennsylvania, Arkansas, and Texas are doing that right now because it's an enormous additional expense.
Recycling also takes the form of transporting the waste fluids away from the well pad to specially designed new technologies that can remove most of the waste from the fluid. What you're left with is a smaller volume of more highly concentrated waste that can then be transported for safe disposal to underground injection wells, for example--which by the way probably will not work in your eastern provinces, just like they won't work in Pennsylvania and New York. But they do work in Arkansas and Texas.
One has to be very careful what you compare your future to. Arkansas is not New Brunswick. Come to Pennsylvania.