One of the world’s leading climate change activists is calling new environmental laws passed by the European Union a “surrender.”

Swedish teenager Greta Thunberg was in attendance on Wednesday as the EU unveiled a proposed climate law, which would legally bind the 27-nation political body to achieve net-zero global emissions targets by 2050 if approved, in Brussels. But Thunberg, who has risen to international acclaim for her climate activism, said the measure didn’t go far enough.