You used in your remarks the expression “the canary in the mine”. I'm a mining engineer by profession. I can assure you that canaries have not been used in mines for many years. There are devices. Science has made great progress. I truly feel that in this case, on this topic, we are at the time when mining was using those little birds to check the quality of air in the mines.
Madame Nicol, you mentioned when you were working on the Royal Society panel that you were reviewing the science. What did you mean by reviewing the science? If there is not much that exists, what can be reviewed to come to any conclusive results?