Sea levels are rising dramatically in a hot spot off the Virginia coast.

• Why? It’s another effect of climate change. The Gulf Stream, a massive current that carries heat north, is shifting.
• What that means: It can accelerate sea level rise nearby. In Virginia’s Hampton Roads region, waters have risen nearly a foot and a half since 1927, and the pace has picked up over the past three decades.
• The big picture: Some communities are already talking about whether to leave — a warning for the rest of the East Coast and the world.

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