On the other hand, in some countries, such as Bangladesh, training of women has been critical in building the green technology sector (see box V.2). The gross enrolment ratio (GER) is defined as total enrolment at a specific level of ed ucation: regardless of age, expressed as the proportion of the population in the official age group corresponding to this level of education. These innovative approaches supplement the formal education system and focus on the skills necessary for green jobs.