NPR’s Planet Money takes on the Discount Rate, and attempts to explain how it fundamentally changes our valuation of the future. At a 7% discount rate (the OMB’s suggested discount rate), we could put away $0.20 today and have $100,000,000,000,000 (that’s $100 trillion) with which to address the costs of climate change in 500 years. Of course, that won’t matter if we’ve ended civilization in the meantime. Riiight.