Volunteers remove invasive plants during an event marking the upcoming Earth Day in Vancouver, British Columbia, Canada, on April 19, 2026. (Photo by Liang Sen/Xinhua)

Volunteers remove invasive plants during an event marking the upcoming Earth Day in Vancouver, British Columbia, Canada, on April 19, 2026. (Photo by Liang Sen/Xinhua)

Volunteers learn to identify invasive species during an event marking the upcoming Earth Day in Vancouver, British Columbia, Canada, on April 19, 2026. (Photo by Liang Sen/Xinhua)