Meghan Markle and Prince Harry have been criticised for flying by private jet twice in a week, despite telling others to be more environmentally conscious.
The royal duo flew to Ibiza for six days to celebrate Meghan's 38th birthday. They returned to England for two days before jetting off to the French Riviera.
Prince Harry also flew by private jet to a climate change conference in Sicily in July, reports Metro.
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Labour MP Teresa Pearse called out the couple, saying they must lead by example.
"Given the position they have taken publicly about being responsible on climate change, this does seem an anomaly which they should look at," she told The Sun on Sunday.
"It's up to all of us to cut our carbon emissions, and the number of flights we take a year. That is really important and someone as high profile as that should lead by example."
Pearse said their travels were "surprising" as it doesn't fit with the couple's public image of environmentalism.
The criticism follows Prince Harry saying he would only have two children with his wife due to concern for the planet.
"I've always thought this place is borrowed," he told primatologist Dr Jane Goodall in British Vogue.
"Being as intelligent as we all are, or as evolved as we are all supposed to be, we should be able to leave something better behind for the next generation."
In a speech in March, Harry gave a speech urging people to change their ways to ensure sustainability.
"We now have the facts, the science, the technology and the ability to save not just our planet but ourselves," he said at WE Day in March.
"You don't just sit back and wait for solutions; you take action and create them."
The couple has not responded to the criticism.