"A number of studies have spotted a worrisome trend: although the number of scientific journals and articles published is increasing each year, the rate of papers being retracted as invalid is increasing even faster. Some of these are being retracted due to obvious ethical lapses—fraudulent data or plagiarism—but some past studies have suggested errors and technical problems were the cause of the majority of problems. (...) The authors find that, since 1975, the rate of retracted articles as a percent of total publications has increased nearly tenfold. Duplicate publications and plagiarism, which didn't use to be a significant problem, have boomed since 2005. And while retractions due to errors have increased, those due to fraud have increased much faster"