<div id="readability-page-1">U.S. debt warning: Penn Wharton researchers say the U.S. could hit its debt limit in 20 years, requiring unprecedented tax hikes to stabilize finances. Nature's fiscal risk: Study warns biodiversity loss could raise global sovereign debt costs by $162 billion annually and cut GDP by $2 trillion. Senegal's debt crisis: Hidden debts push Senegal into ratings downgrades and stalled IMF talks, with debt-to-GDP now estimated at 119%.</div>

<p>Recent reports highlight global debt risks: Penn Wharton warns the U.S. may hit its debt limit in 20 years, necessitating tax hikes; a study indicates biodiversity loss could increase sovereign debt costs by $162 billion annually and reduce GDP by $2 trillion; and Senegal faces a debt crisis with hidden liabilities pushing its debt-to-GDP ratio to 119%, leading to rating downgrades and stalled IMF negotiations.</p>

Triple debt warnings highlight risks to global stability