Occasionally there would be something I didn’t recognise and I’d record it with a question mark or, as a joke, LGM for Little Green Men. It was easier than saying “you know that funny pulsing source at right ascension 1919, declination plus 20”. So, it became LGM.

I have a problem with my ears. I really have a problem. When I was living in the city, I threatened people because of some noise they were making that was bothering me. It sounds psychotic, I know. Once it was a beep from a fax that I heard in the night, very far away. I went to every floor, to every neighbor, putting my ear to the door, until I discovered where the sound was coming from. Then I would tell them, “You have a fax machine that’s making this sound and it’s driving me crazy.” “You’re four floors away from me—how can you hear that?” they said. “You’re crazy, you’re a hysterical woman.” Whatever, call me whatever you want, but I hear it, and I can’t sleep because of it.

I come from the generation who were taught never to throw things out. I like the idea of hanging on to things and repairing items rather than discarding them. It’s not a question of money, more to do with guarding resources and not being wasteful. My children laugh at me when I sit darning a pair of socks.

I immediately loved working with flies. They fascinated me, and followed me around in my dreams.

I have also benefited from teaching; as I try to explain my views to students with critical and open minds, I find myself continually being challenged to go back and rethink ideas. I now see teaching and research as complementary, mutually reinforcing activities.

At first the research did not seem to be particularly interesting – I carried out a systematic search for processes that might destroy the CFCs in the lower atmosphere, but nothing appeared to affect them. We knew, however, that they would eventually drift to sufficiently high altitudes to be destroyed by solar radiation. The question was not only what destroys them, but more importantly, what the consequences are.

I had a number of very good teachers in high school, in fact. Some mathematics teachers that perhaps allowed me the freedom to go beyond the normal routine of the class and to explore some more advanced areas. The same thing happened in college. I was able to communicate with a few of my teachers and professors, and go beyond the normal expectations. And then, as I mentioned before, Professor Pimentel, my mentor for graduate studies, was really influential in terms of the influence that he had for me.

In terms of this issue of these industrial gases affecting the environment, at the beginning the road was not easy, because we were suggesting that society had to change, that industries had to do something different than they were doing at that time. And of course, initially we did not meet with a good reception to these ideas from industry. And even from the scientific community — even though our ideas were well received in the small group of specialists in what we were doing — it was not necessarily well received by the scientific community at large. So we really had to continue doing as good a science as we could, and at the same time trying to well communicate our conviction that it was something important, something that had to change in the way society was functioning.

It’s easy to try to exaggerate the problems just to get more attention. So for me, it was very clear that the best way to deal with that was to do the best science that I was capable of doing.

For me, it was just a thrill. I just remember thinking at that time, this is the sort of thing I would like to do, if I could. I did not come from a family of scientists. My father was a lawyer, my older brother was a lawyer.