The massive tornado hat swept through the suburbs of Oklahoma City has sparked a question among some scientist in the US, they blame climate change for this weather disaster. However some specialists say tornadoes are unpredictable and erratic. teleSUR http://multimedia.telesurtv.net/media/telesur.video.web/telesur-web/#!en/video/cientificos-discuten-relacion-entre-tornados-y-calentamiento-global