Contributor(s): Dr Ernestina Coast, Gary Darmstadt, Karl Hofmann, Ashley Judd, Nina Muita | On July 11, the UK Government and the Bill and Melinda Gates Foundation will launch the London Summit on Family Planning. The unprecedented event will bring world leaders together to catalyze political and financial commitments to reach the needs of an additional 120 million women who lack access to modern, voluntary family planning methods. One day prior on July 10, LSE Health and PSI (Population Services International) will co-host a public discussion about the summit's relevance to health, economic, and environmental challenges facing every country - and why everyone, in every sector, has a critical role to play.