This was one of the most intimidating challenges for me so far. I found the Fossil Free Funds sight which the Ecochallenge shared to be very helpful. It let me look up the holdings in my Roth IRA and also let me search for new ones based off of environmental ratings amidst projected growth ratings. I will continue to use it as I move forward with divesting and reinvesting. It is also a thought-provoking challenge because retirement accounts have me think about my personal future, but learning about divesting and reinvesting has me thinking about the future of the world. Because this is such a big challenge, I am taking it one step at a time.
In general, the main way I think of using my money to align with my personal values is through making purchases in companies I believe in and donating money to causes I care about. This challenge does have me think outside the box for how my money is being used. For instance, a blog post I read suggested calling your bank to ask how they use the money you invest in savings accounts and such.