My first words of appreciation are to the organization of the XVII World Petroleum Congress, for giving me the opportunity to participate in this plenary conference on the role of natural gas as a bridge fuel towards a sustainable future. The World Petroleum Congresses have been, since their beginning, a meeting place for reflection on a high level, where the problems of a sector that is a cornerstone for the normal development of economic activity have been debated in depth and rigorously.
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