French 10-year bond yields surged to 4.10%, nearing 2008 crisis highs, as 117% debt-to-GDP ratio and political instability rattle eurozone

G7 bond yields are hitting multi-decade highs, pushing annual debt costs past $1 trillion in the US and straining budgets from London to Tokyo.

France's debt burden and political gridlock are pushing borrowing costs toward levels not seen since 2008.