In some regions they are already caught in a vicious downward spiral, with shrinking sea ice cutting short the time bears have for hunting seals, scientists reported in Nature Climate Change.

科学家在《自然气候变化》上发表的报告称，在部分地区，由于海冰消融缩短了北极熊捕食海豹的时间，北极熊已经陷入数量螺旋式下降的恶性循环。

It’s just a kind of sectarian problem case that threatening to plunge the country back into the dark days of 2006 and 2007 when many thousands dead in a vicious spiral of communal carnage.

这只是一种宗派问题案例，有可能使该国重回 2006 年和 2007 年的黑暗日子，当时成千上万的人死于恶性循环的社区屠杀。