At the end of 2008 he was invited by Elliot Morley, the former GLOBE International’s President, to be part of the new International Commission on Climate and Energy Security that was launched in Washington DC to back the works of Lars Løkke Rasmussen, Prime Minister of Denmark, in advance of the Copenhagen Conference on Climate Change that would take place at the end of 2009. On June of that same year, during the GLOBE Rome Forum held in the Italian parliament, Espinosa was asked to give a speech regarding the Mexican Green Fund proposal. A few days later, Gordon Brown, Prime Minister of the United Kingdom, delivered a speech on the Roadmap to Copenhagen where he pointed to the Mexican Green Fund as an example of the kind of financial mechanisms that could be agreed upon in order to tackle climate change.