Thank you, Dr. Schindler.
When we started this oil sands and water study, the real concern was going to be tailings ponds leakage, which you've indicated happened and which industry has indicated has happened.
Your study clearly highlights that the danger to water and in the system is much more through airborne contaminants. What I'd like to know is what other studies have corroborated your discovery or demonstration or findings and/or what studies have disproved them. Is there enough science around it? You mentioned the need for long-term monitoring by Environment Canada, but are there other studies out there that either corroborate or disprove what you've managed to develop?