The first strike and the step of the movement was led by Greta Thunberg. Despite the cause of it being the years of man-caused devastation towards the environment and the climate around, the real first step was on 2018, where Greta Thunberg, sat alone outside the Swedish Parliament asking for a radical reduction in greenhouse gas emissions. Additionally, it was sparked by the retention of school attendance;Greta, for example, withdrew from her school attendance in order to advocate for such climate justice, thus influencing a majority to do so as well.