Arctic sea ice extent is essentially unchanged since January 2006.
However, experts fear London may become ice-free during summer within a generation.
Blocks of Arctic ice are melting in the heart of London | LifeGate
Arctic sea ice extent is essentially unchanged since January 2006.
However, experts fear London may become ice-free during summer within a generation.
Blocks of Arctic ice are melting in the heart of London | LifeGate