Emily Bit remembers a time when she didn't feel the constant threat of climate change. Her family lives in American Canyon, in southern Napa county, California, a state now being hit by record high temperatures and devastating wildfires. "It didn't used to be this bad," she said.

These days her family has to evacuate their home every summer. Two of her friends lost their homes in Paradise, the town consumed by the 2018 Camp fire disaster, the deadliest in California history. Last year, a wildfire burned the nature reserve behind her local school until it was "entirely black. It was like something from a dystopian novel".

She worries about her younger siblings, a 12-year-old sister and an eight-year-old brother. "What's it going to be like in the future?" she asks. She wonders how responsible it would be for her to have children. Bit is 17.

Now, she and fellow student activists are working to break one big link in the fossil fuel chain that is driving climate change: gas stations. There are two proposed new gas stations in her town she wants scrapped. "We don't need them," she said.