Here's one more reason to pick the "no receipt" option when using an ATM: chemicals. In addition to saving trees by going receiptless, you also avoid the risk of getting the chemical Bisphenal-A (BPA) on your fingers. The same chemical that was once found in reusable water bottles is also used in thermal paper receipts. When you handle thermal receipts, you risk transferring the chemical to your fingers and then potentially into your bloodstream. As a known endocrine disrupter, BPA should be avoided. If you do handle thermal receipts, wash your hands and never recycle them: BPA should be kept out of recycled paper goods.