We will absolutely have to monitor for at least another decade before we can be confident.

The big question is, what role does climate change have in all of this?

When I think of the project, there was just an amazing amount of collaboration, among chemical manufacturers, politicians, auto manufacturers, all realms of science and policy.

Changing from one style of refrigerator to another is a smaller and easier change than changing the way we all use fossil fuels.

We will have to continue to monitor ozone levels for years to come before we can be confident.

We will probably be doing a workshop with council soon, in the next few weeks. I'm hoping that we have a plan for city hall by this year.