Complex sentence: Hélène Pelosse, Director General of IRENA, met with UN Secretary General Ban Ki-moon during 2009 Climate Week in New York, together with Mr. Ban explored future fields of cooperation between IRENA and various UN bodies.
Split into simpler sentences: Hélène Pelosse, Director General of IRENA, met with UN Secretary General Ban Ki-moon. At the meeting during 2009 Climate Week in New York, together with Mr. Ban explored future fields of cooperation between IRENA and various UN bodies.