Like most teenagers, Greta Thunberg has spent 2020 mostly indoors, attending classes online and waiting for the day she can return to school in person. Unlike most teenagers, though, she’ll be kicking off 2021 with the world watching as she continues to advocate for the fight against climate change. Thunberg, who celebrated her 18th birthday earlier this month, has come a long way since she was a 15-year-old striking solo outside the Swedish parliament during school. In the years since, her activism has taken on a life of its own, inspiring hundreds of similar climate strikes around the world as part of the Fridays for Future campaign, and even earning her the title of Time’s Person of the Year in 2019. But international fame hasn’t changed the message that made her a household name in the first place: the earth is dying, and in the new year, we need to focus more than ever on tackling the crisis with a sense of urgency. “My hope for 2021 is that we see an awakening when it comes to the climate and environment, [and] that we start to treat this crisis like the crisis it is,” she says, “and understand what needs to be done – understand that we have failed and that we need to take real bold action right now, that we cannot afford to wait any longer.”