I'm hard pressed to suggest that the greenhouse industry has the potential to completely disconnect from fossil fuels in the next 10 years. That being said, I think there are some very promising opportunities when it comes to plant genetics—plant genetics that are more energy efficient and still can be grown in a northern climate. That's the challenge.
There are meaningful amounts of research being done on what we call “closed” greenhouse systems, where essentially you have a heat pump concept on, obviously, a larger scale. The challenge there is the capital cost to remain competitive in a marketplace where you're competing against California and Mexico, especially in certain parts of the year.
Just to personalize it, when I started in the greenhouse, using 42 to 45 cubic metres of gas per square metre was considered very efficient. Now it's 38 or 36. Some of our really elite growers go to 33. It's that incremental improvement that we can make. The challenge is that the carbon tax being applied is being increased at a far higher rate than science and technology can keep up with.