If allowed to proceed unchecked , the problem will undoubtedly exacerbate global wa123 ing and threaten life as we know it today .
If allowed to proceed unchecked , the problem will undoubtedly exacerbate global wa123 ing and threaten life as we know it today .
如果任其自由发展，这一问题无疑会加剧全球升温，并且正如今天我们所知道的那样危及生命。