Seismic signs of escaping methane under the sea

  title={Seismic signs of escaping methane under the sea},
  author={Virginia L. Gewin},
  • V. Gewin
  • Published 25 October 2012
  • Geology
  • Nature
A changing Gulf Stream is warming deep waters along the eastern United States and destabilizing greenhouse gases trapped in sediments. 


Recent changes to the Gulf Stream causing widespread gas hydrate destabilization

This analysis suggests that changes in Gulf Stream flow or temperature within the past 5,000 years or so are warming the western North Atlantic margin by up to eight degrees Celsius and are now triggering the destabilization of 2.5 gigatonnes of methane hydrate (about 0.2 per cent of that required to cause the PETM).