Cary Fowler talks about saving genetic diversity through cold storage of seeds.
He is the Executive Director of Global Crop Diversity Trust where their mission is to store their seeds in a safe remote place.
However good the message is (and I agree with keeping a seed bank to preserve genetic diversity for other reasons), I question the seeds' value if the temperature rises as "in many countries the coldest growing seasons are going to be hotter than anything those crops have seen in the past." If these crops have not seen these temperatures in the past, what good will they do if kept for the future because of systematic crop failure? They couldn't have evolved different mechanisms to live in the hotter climate.