Journal club.

The article reports on the discovery of the clumped isotope thermometry, a valuable tool for paleoenvironmental studies by a group of researchers at the California Institute of Technology (Caltech) in Pasadena, California. The new tool was discovered by measuring the abundance of molecules which contain oxygen-isotope and the uncommon carbon-isotope. According to published papers, the results of early test of this clumped thermometer on corals and fish earbones were promising which provides a new record of ocean temperature during Paleozoic era.