Understanding the past is always useful in predicting the future. In this case, how climate fluctuates over time due to natural effects before and and his industry affected it. Tree-rings, ice-cores, and speleothems can all be used to reconstruct climate of the past millennia. But these records may be of local effects and not global as well as being impacted by other events not clear in the mists of time. Researchers of the Swiss Federal Research Institute WSL, the University of Bern’s Oeschger Center, and the University of Mainz have found out that yearly temperature and precipitation variation and extremes have previously been underestimated in comparison to longer-term climatic trends. These findings were just published in an early release issue from the renowned journal Nature Climate Change.