60 SECONDS

摘要

A move to natural gas may not help the climate after all. It's a blow to those who have suggested that the gas, which is now cheaper to extract thanks to tracking, might replace more damaging fossil fuels. But energy models predict that natural gas will push down the use of renewable energy, resulting in little or no benefit to the climate {Nature, DOI: 10.1038aturel3837). Gene therapy for "bubble boy disease" is proving its mettle. Nine children were given a healthy version of the faulty gene that had left them without a fully functioning immune system. Eight of the children are living outside their sterile bubbles up to 43 months after treatment (New England journal of Medicine, doi.org/wbr). The other child died from a pre-existing infection.