US Post prices are a good proxy for inflation, and that it may be inflation that is really behind the recent change in climate. He admitted it was puzzling that there appears to have been global temperature changes for 3-5 billion years before the advent of either US Postal services, or inflation. “You would think the planetary climate would have been stable.” But Harvard social researchers are calling for funding for archaeological digs to find postage stamps from the precambrian. “It’s under-researched”. US Post said this type of finding would be very important but, if any stamps were found, they would be unable to honor them: “Since at the time, the US didn’t exist, in government, in theory, or even as a landmass”.