The energy sector is one of the pillars of growth, competitiveness and development of our modern economy, but with safe, secure, sustainable and affordable energy, the well-being of people, industry and the economy can be ensured. Furthermore, energy-related emissions account for almost 80% of the EU's total greenhouse gas emissions, which directly contribute to climate change. Therefore, Europe faces a serious energy security challenge to meet its demand, along with environmental concerns. sustainability and in particular on the global climate. The question is: how can we secure, produce and consume our energy resources sustainably and ensure that socio-economic development does not compromise the carrying capacity of natural resources? The aim of this article is therefore to present a comprehensive view of European energy security and its relationship with sustainable development regarding different green perspectives and its social and environmental costs.2. THE ENERGY MARKET2.1 Energy consumption in the EU-27In 2011, gross inland consumption (GIC) of primary energy in the EU-27 was 1,698 million tonnes of oil equivalent (1). As the trend remained relatively unchanged until 2008, the GIC decreased considerably in 2009 (1). Much of this change can be attributed to a lower level of economic activity resulting from the financial and economic crisis, rather than a structural change in energy consumption patterns (2). Indeed, in 2010 there was a rebound in the level of primary energy GIC in most Member States, with the exception of Greece, Spain, Cyprus, Lithuania and Portugal , perhaps reflecting the low level of economic output and low consumer confidence in many of these countries. . How...... middle of paper ......EA. Energy security and climate policy. Evaluation of interactions. Paris: sn, 2007.17. Going green and energy security. Molho, Nick. sl: The Economist, December 11, 2013.18. European Council. Presidency conclusions. Brussels: sn, 2007.19. European Commission. Green Paper. Towards a European strategy for the security of energy supply. Brussels: sn, 2001.20. Green Party. Policies for a sustainable society. http://policy.greenparty.org.uk/eu. [Online] Fall 2013.21. European Commission. General Directorate of Energy. Report on the Green Paper on Energy. Four years of European initiatives. Brussels: sn, 2005.22. Rosenthal, E. Europe turns to coal again, raising climate alarms. The New York Times. April 23, 2008.23. European Commission. General Directorate of Energy. Energy 2020. 2011.24. Percé et al. Project for a green economy. 1989.