HFC greenhouse gases accumulate in refrigerators and air conditioners Hydrofluorocarbons (HFCs) are potent greenhouse gases used in refrigerators and air conditioners and are released primarily at the end of the life-span of these products.
Regional differences in testing rates underestimate incidence of LGV epidemic Until 2003, Lymphogranuloma venereum (LGV), an aggressive form of chlamydia, was considered to be a rare tropical disease, endemic to Africa, Asia and the Caribbean.