Atlantic 'Heat Valve' AMOC May Accelerate Global Warming

AMOC's New Role: Regulating Earth's Heat Release

AMOC is proposed to regulate Earth's heat release. When strong, it releases heat; when weak, heat is trapped in the ocean, potentially accelerating warming.

• AMOC proposed to regulate Earth's heat release
• Strong AMOC releases heat; weak AMOC traps heat, accelerating warming

AMOC's Impact Seen in Ice Age Data

Ice Age data analyzed AMOC's impact. During weakened AMOC, an additional decade's worth of greenhouse gas heat was stored. Differences exist with modern climate, but recovery potential is suggested.

• During Ice Age, weakened AMOC stored decade's worth of greenhouse gas heat
• Differences with modern climate exist, recovery potential suggested

Impact of AMOC Changes on Climate and Need for Response

Changes in AMOC could accelerate warming and increase climate system uncertainty. Enhanced observation systems and strengthened greenhouse gas reduction policies are needed.

• Weak AMOC accelerates warming, increases climate system uncertainty
• Need for enhanced observation systems and strengthened greenhouse gas reduction policies