By Jemma Carr For Mailonline
Published: 09:40 GMT, 1 December 2019 | Updated: 14:40 GMT, 1 December 2019
A British yacht skipper's flight to the US to help Greta Thunberg sail to Portugal has produced the same amount of carbon emissions the voyage hoped to save.
Nikki Henderson, 26, flew to the US from Britain to sail 48-foot catamaran the La Vagabonde.
The vessel is carrying Miss Thunberg and her father Svante 3,000 miles to Portugal where she will go onto attend the COP 25 climate change talks in Madrid.
Nikki Henderson's (second left) flight to the US to help Greta Thunberg (centre) sail to Portugal has produced the same amount of carbon emissions the voyage hoped to save. Miss Thunberg can be seen with Australian couple Riley Whitelum (left) and Elayna Carausu (right), and Ms Henderson (second left) on board La Vagabonde
Ms Henderson was a skipper in three ARC Trans Atlantic races. In two of them, she was the youngest competitor Pictured on the eve of her departure to Portugal
The journey was meant to save approximately two or three tons of carbon dioxide emissions.
But Ms Henderson's flight from Britain to the US likely produced the same amount of emissions the journey hoped to save, countering Ms Thunberg's mission, The Times reports.
Ms Henderson was a skipper in three ARC Trans Atlantic races. In two of them, she was the youngest competitor.
She also skippered the Caribbean 600 and has raced in three Caribbean seasons.
Ms Henderson tweeted: 'I decided to help @Sailing_LaVaga and