Yes, to the permafrost idea. As to the climate change and food supply I had a request for reports on the impact of cold or warmer weather on corn and soybeans, but the detail wanted no one is tracking or a least I haven't found it. The concept of problem random weather events on production and have the problems escalated to the point where they should not be considered random, you can find the night temps, etc. but what is needed is data on dates planted and type of seed in great detail and that is not readily available. I know there is a lot of coffee shop talk on the weather has changed and no one can count on anything, but helping someone prove it is going to take a few years.