That's the message behind a new sculpture of famed Swedish teen climate activist Greta Thunberg. The sculpture, a likeness of Thunberg, was made of ice and was standing in Trafalgar Square in London. The artists–C.J. Brown, Chris Godfrey, and Alissa Khan-Whelan–designed the sculpture to last one day, melting all the while, as a way to not only highlight the global warming that Earth is undergoing but also highlighting Thunberg's role in calling people's attention to the dangers of that global warming.

The artists included with the sculpture an open letter to Sadiq Khan, the mayor of London, that included a petition for crafting a permanent sculpture (not made of ice) of Thunberg, in recognition of her work in motivating millions of people to join in protests and rallies around the world to protest inaction on climate change.

Thunberg, who is now 16, soared to international recognition in 2018 by going not to school but to Parliament in Stockholm to protest. She had a wooden sign and some flyers, containing facts about carbon footprint and climate change. She spent what would have been her schoolday hours in front of Parliament, holding up the sign and handing out flyers. She went back the next day and found other people ready to stand with her. Every school from then until Sept. 9–the day of her country's general elections–Thunberg spent outside Parliament, holding her own vigil; the crowds with her grew and grew. She wanted to call attention to the fact that her country's environmental policies were not necessarily in line with the 2015 Paris Agreement on actions needed to combat climate change.

She is not attending school this year in order to focus fully on her campaign to raise awareness about climate change. She has led the charge for events around the world, including a series of Climatestrike days, in which students and adults in cities on most continents followed Thunberg's example and spent school hours protesting against the pace of climate change. The latest two such events drew 4 million people in one day and 7.6 million in total.

Thunberg also spoke at the United Nations Climate Action Summit, imploring world leaders to hurry up and take action.