If we can find less toxic solutions, that would certainly be a step in the right direction, but I think it's very hard to find out.... We have had examples in the past of things being replaced without sufficient study into what they were being replaced with. We need the sufficient study before we do anything, to find out the real consequences. Often we only find out about the consequences 10, 50, and sometimes 100 years later. I think, as much as possible, we need that research base on the substances before they are released. We'll never have it perfect, but we can do a lot better job than we're doing now.
On December 1st, 2016. See this statement in context.