Swedish teen environmental activist Greta Thunberg pledged to continue her fight this year for measures to curb climate change and expressed hope that, given the opportunity, she may visit Japan.

In an interview Friday the 17-year-old said she remains "determined ... to have an impact and to change the way we treat the climate crisis, to spread awareness and put pressure on people in power."

She made the comments while taking part in a weekly demonstration held by school students in her hometown of Stockholm, on a date that happened to coincide with her birthday.