The explosion happened after reports of a gas leak early Wednesday morning.
The pipeline will provide almost all the gas requirements of the region's EU states
"Losing Turkey would be a serious loss for Russia," the Turkish president said.
Pennsylvania and New York use the toxic waste to de-ice roads. Scientists say that's a mistake.
The world may already be approaching a temperature at which complete loss of the enormous ice sheet that covers Greenland would "become inevitable"
Nearly a decade into a drilling boom, a lack of pipelines has left some areas vulnerable to shortages this year and potentially for years to come.