When this happens, one plate moves past the other, suddenly causing the Earth's surface to split.

VOA: special.2010.01.12

They said hot melted material flows up from deep inside the Earth through the split.

VOA: special.2010.01.12

They look as if they formed as the earth split apart.

VOA: special.2009.10.07

And conservative America, once solidly sceptical, is now split over the issue, as Christians concerned about mankind's stewardship of the Earth, neo-cons keen to reduce America's dependency on the Middle East and farmers who see alternative energy as a new potential source of energy come round to the idea of cutting down on carbon.

ECONOMIST: Climate change