Asian News International: A new study has determined that global warming might be leading to the birth of too many male fish. According to a report in Live Science, some experts believe that the gender of many fish is determined by temperature, because temperature-dependent sex determination, or TSD, occurs in many species. But, a critical analysis of the fish literature by Natalia Ospina-Alvarez and Francesc Piferrer, both of the Marine Science Institute in Barcelona, Spain, casts doubt on that …