When you put your money in a savings account, it doesn't just sit there waiting for you when you need it. Banks are actively investing that money to finance other ventures to keep growing their funds. What they put your money in might not always be super clear—and different banks have different reasons for investing. But, in general, many of them are still bankrolling fossil fuels, despite the industry's impacts on the health of people and the planet. Well-established green banking option are Atmos, National Cooperative Bank, and Southern Bancorp. Mighty Deposits also has a detailed resource with tons of options, and Green Deposits has a tip sheet on the how-tos of moving your money.