Generally speaking, it's the adoption of precision agricultural technologies and massive progress in the number of times tractors and combines are passing over fields. It's the reduction in fuel use we've seen by precision agricultural technology. The no-till technology to reduce the time equipment is spending in the field has been the most significant.
When it comes to livestock operations, I think there's been a continual evolution in the adoption of heat exchangers. Solar technologies and others are employed in many instances to support what is still the absolute requirement, which is fossil fuel heating and cooling as the core constituent of that. I think we continue to see new technologies being employed.