The change specifically affects Americans born in 1960 this year, because they will be turning 65 in 2025 — formerly the full ...

In an era where the stakes are higher than ever, climate change poses unprecedented risks to our national security. Discover ...

President Bush’s 1991 National Security Strategy explicitly called out climate change as a threat already contributing to political conflict: Global environmental concerns include such diverse ...

The clock is set to 89 seconds to "midnight" as scientists and security experts say humanity is close to facing a global catastrophe with no advancement on nuclear risks and climate change.