(CNN) Swedish teen climate change activist Greta Thunberg put out a transportation plea on Twitter after the COP25 environmental summit set for Chile was moved to Spain.

The United Nations confirmed Friday the meeting will take place in Madrid in December after Chile withdrew as host because of protests that have paralyzed the nation over the past two weeks.

Youth activist Greta Thunberg speaking at the Climate Action Summit in New York earlier this year.

Thunberg has traveled halfway to the South American nation but will need to turn back to make the UN climate summit.

The activist refuses to fly due to high levels of emissions from air travel and instead uses boats, trains and electric cars to get around.

"It turns out I've traveled half around the world, the wrong way," Thunberg wrote on Twitter. "Now I need to find a way to cross the Atlantic in November... If anyone could help me find transport I would be so grateful."

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