Teen climate activist Greta Thunberg had made it half-way from
Sweden to Chile by boat, train and electric car when next month's UN climate summit was unexpectedly scrapped.
"As #COP25 has officially been moved from Santiago to Madrid I'll need some help," Thunberg tweeted from Los Angeles.
Thunberg's highly publicized journey has so far involved crossing on a zero-emission sailboat from the coast of
England to
New York, traveling overland through North America by train and in an electric car borrowed from Arnold Schwarzenegger.