An international survey of geoscience education has been carried out jointly by UNESCO and the International Geoscience Education Organisation (IGEO) to address the question of 'How does school-level Earth science education compare across the globe? The survey gathered data from experts in 51 countries, comprising more than half the global population. Most countries (75%) had national standards covering Earth science but these were not followed or are absent in more than half the countries surveyed. Only around 25% of the countries with standardised assessments have Earth science-specific questions. Most teachers of Earth science are non-specialist teachers, whilst support of these teachers through courses and professional development is generally low, with very little financial support provided. Earth science teaching materials are reported to be generally of moderate to poor quality. However, there is good support globally for informal Earth science education and there are enthusiastic groups of educators attempting to address the rather bleak formal education situation. Strategies being used include the publication of an international syllabus with free-to-download supporting textbooks, websites of high-quality interactive teaching materials, national champions promoting interactive geoscience education, and global support for these initiatives.