You could try, if your "white balance" has a setting for fluorescent light, trying that. Fluorescent light is greenish, so the camera would shift the balance to less green.
(One of the advantages of digital photography is that you don't waste film, developing and printing, to see the effect of a change. Just try things [and note what you're trying, maybe in a little notebook] and, if they don't work, don't save the picture. The only differences between taking one picture and taking 1,000 pictures is the number of times you'll have to charge the battery and how much of your time you'll waste. [Ansel Adams, one of America's greatest photographers, got a fantastic shot of the moon over the desert. When he was asked how he did it, he said that he took a few hundred pictures and one turned out pretty good. And this was in the days when you made your own glass photographic plates, and developed them by hand. The secret to great photography is take a lot of pictures and try a lot of different things.])