Government borrowing costs have been surging around the world as investors demand more compensation to entice them to hold longer-maturity debt. Yields on 30-year Japanese government bonds are near all-time highs at 4. 19%, while 30-year UK government bond yields are at their highest since 1998.
Source: [Bloomberg Markets](https://www.bloomberg.com/news/articles/2026-09-01/why-government-bond-yields-are-rising-and-causing-alarm)