Climate change activist Greta Thunberg arrives with her father aboard the yacht La Vagabonde at Santo Amaro port in Lisbon, Portugal December 3, 2019.
Climate change activist Greta Thunberg speaks upon her arrival at Santo Amaro port in Lisbon, Portugal December 3, 2019.
Climate change activist Greta Thunberg arrives with her father aboard the yacht La Vagabonde at Santo Amaro port in Lisbon, Portugal December 3, 2019.
Climate change activist Greta Thunberg arrives aboard the yacht La Vagabonde at Santo Amaro port in Lisbon, Portugal December 3, 2019.
The yacht La Vagabonde, with climate change activist Greta Thunberg on board, approaches Santo Amaro port in Lisbon, Portugal December 3, 2019.
Climate change activist Greta Thunberg looks on upon her arrival at Santo Amaro port in Lisbon, Portugal December 3, 2019.
Climate change activist Greta Thunberg arrives with her father aboard the yacht La Vagabonde at Santo Amaro port in Lisbon, Portugal December 3, 2019.
Environmental activists welcome climate change activist Greta Thunberg as she arrives aboard the yacht La Vagabonde at Santo Amaro port in Lisbon, Portugal December 3, 2019.
Swedish teen environmental activist Greta Thunberg poses on the La Vagabonde, a 48-foot catamaran, with those offering her a ride across the Atlantic ocean, in Virginia, U.S. November 12, 2019, in this image obtained from Greta Thunberg's social media. Courtesy of Twitter @GretaThunberg/Social Media via REUTERS.
Climate change activist Greta Thunberg waves as she arrives aboard the yacht La Vagabonde at Santo Amaro port in Lisbon, Portugal December 3, 2019.
The yacht La Vagabonde, with climate change activist Greta Thunberg on board, approaches Santo Amaro port in Lisbon, Portugal December 3, 2019.
Climate change activist Greta Thunberg arrives aboard the yacht La Vagabonde at Santo Amaro port in Lisbon, Portugal December 3, 2019.
Climate change activist Greta Thunberg arrives at Santo Amaro port in Lisbon, Portugal December 3, 2019.
Climate change activist Greta Thunberg arrives aboard the yacht La Vagabonde at Santo Amaro port in Lisbon, Portugal December 3, 2019.
The yacht La Vagabonde, with climate change activist Greta Thunberg on board, approaches Santo Amaro port in Lisbon, Portugal December 3, 2019.
Climate change activist Greta Thunberg, aboard the yacht La Vagabonde, smiles as she heads into Santo Amaro port in Lisbon, Portugal, December 3, 2019 in this picture obtained from social media. Greta Thunberg via REUTERS
Climate change activist Greta Thunberg sails aboard on the yacht La Vagabonde to attend U.N. climate talks in Spain, from a marina in Hampton, Virginia, U.S. November 13, 2019.
Greta Thunberg reaches Europe ahead of climate summit