I think Russia would be happy if the Southern Corridor did not happen, but I think at this point it's a fait accompli – it will happen. The Shah Deniz project has been approved and a final investment decision has been taken. Work is progressing on it and on the Trans Anatolian Pipeline (TANAP) that will cross Turkey and go on into Europe. The present issues between Turkey and Russia will only strengthen the resolve for completing the Southern Corridor. The question will be how much the Southern Corridor can expand beyond the currently planned quantities of 10 bcm to Europe and the 6 bcm to Turkey. It is also a question of whether there will be other gas sources that can put gas into that pipeline system.

In 2015, Gazprom increased market share in Europe and Turkey by one percentage point, from 30.2% to 31.2%,

Russian Economy Minister Alexei Ulyukayev put it more bluntly, telling reporters in Brussels that blocking Nord Stream-2 would be "a shot in the foot" especially for Gazprom's European clients.

Gazprom and some utilities say Nord Stream-2 is the most pragmatic solution to shoring up Europe's energy security. The European Commission has said it is assessing its legality.

Donald Tusk, president of the European Council, became the latest senior politician to criticise plans for a new pipeline bringing Russian gas to Germany, saying it would undermine the EU’s goal of reducing energy dependence on Moscow.

In theory, the European Union is pursuing a single energy market, based on the needs of all 28 EU nations. It is also meant to be united against Russia as it seeks to defend the interests of Ukraine following Moscow's seizure of Crimea in March last year.

Nord Stream-2 is still supposed to meet a hypothetical rise of EU gas demand, and also to deal with the abandonment of other projects, like the Nabucco project, which was largely abandoned in 2012, the South Stream project abandoned in December 2014, as well as the ill-fated Turkish Stream project, held hostage in the Russian-Turkish war of words that has followed the shooting down of a Russian warplane by the Turkish Airforce.

The Nord Stream II pipeline would stretch 1,200 kilometers across the Baltic Sea, from Vyborg on the Russian coast to Griefswald, Germany. Once completed, it would have the capacity to transport 27.5 billion cubic meters of gas directly to Germany, circumventing Ukraine and the Central and Eastern European states. Russia’s Gazprom would own 50% of the project, and France’s Engie, Austria’s OMV, Royal Dutch Shell, and Germany’s BASF and E.ON each would own a 10% share.

The additional volumes are roughly what Gazprom has been piping to the EU through Ukraine, raising concerns that the new route would allow Russia to strip Kiev of much of its remaining economic leverage and an important source of income.

By 2035 global energy consumption increases by 37% from today’s levels with virtually all (96%) the growth in non-OECD countries and more than half coming from India and China.