Across the world, women in physics have much in common. In almost all countries, women are largely under represented in physics. In the majority of countries for which data was obtainable for this report from reliable statistical agencies, women earned no more than one-fifth of the PhDs in physics. Many women physicists across the world also…

Despite years of continued growth, women's participation in physics remains among the lowest of any scientific field. The issue is of great concern to many in the scientific community, spawning talks at conferences, data collection efforts, and speculation about the causes of women's low participation in physics. Although women's participation in…