A new study says scientists at the oil company Exxon Mobile made accurate predictions about global warming starting in the 1970s. The study, in the journal Science, examined research by Exxon scientists. The oil company used more than 12 computer models that predicted increasing temperatures as well as, or better than, government and university scientists. The study said that Exxon’s predictions that the atmosphere would warm about 0.2 degrees Celsius every 10 years were correct. Naomi Oreskes is a history of science professor at Harvard University in Massachusetts. Oreskes was a co-writer of the study. She said Exxon paid for research that was “actually astonishing” in its precision and accuracy. Geoffrey Supran is the lead writer of the study and an environmental science professor at the University of Miami. He said this study is different from what earlier studies have found in documents from the oil industry. He said the data gives strong evidence that Exxon predicted that world temperatures would rise. But, he said, the company publicly attacked other scientific efforts that made similar predictions. The study quoted then-Exxon chief Lee Raymond. In 1999, Raymond said climate research was “based on completely unproven climate models,” or mostly guessing about the future.