Arctic sea ice always grows and shrinks with the seasons, reaching its minimum each summer before expanding again in winter. But thanks to global warming, that minimum itself is now shrinking -- and at an unprecedented pace. Here's a graphical look at what that means and why it matters.

This infographic appears courtesy of BBC Earth.

Infographic: Meltdown in the Arctic
As the Arctic grows warmer, its sea-ice cover is shrinking at an unprecedented pace. Here's a graphical look at how quickly it's disappearing.