David Beckham leaves the plane with Princess Anne and Lord Coe in anticipation of the 2012 London Olympics. He made 30 long-haul flights last year.

David Beckham leaves the plane with Princess Anne and Lord Coe in anticipation of the 2012 London Olympics. He made 30 long-haul flights last year.

David Beckham has faced criticism after discovering 30 long-haul flights last year, while campaigning against climate change.

The former English captain made seven flights between Britain and Miami, twice between the UK and Beijing, as well as to California and Jakarta.

Beckham, 43, flew in first class, which would have generated 80,000 kg of CO2 while an economic seat would produce only 20,120 kg – taking up less space.

It comes after World Wildlife Fund featured the campaigns of the former Manchester United star, and also supported Sir David Attenborough's latest project on climate change, Our Planet.

His son Brooklyn, 20, joined last month at the premiere of the Netflix series at the Natural History Museum in London.

Beckham arrives at the Nanjing Lukou International Airport on June 18, 2013 in Nanjing, China. He has made seven round trip trips between Britain and Miami, twice from the UK to Beijing, as well as to California and Jakarta in 2018.

Beckham arrives at the Nanjing Lukou International Airport on June 18, 2013 in Nanjing, China. He has made seven round trip trips between Britain and Miami, twice from the UK to Beijing, as well as to California and Jakarta in 2018.

The 43-year-old former football star and his eldest son Brooklyn, 20, wore matching tuxedos at Netflix's premiere of David Attenborough's latest project, Our Planet.

The 43-year-old former football star and his eldest son Brooklyn, 20, wore matching tuxedos at Netflix's premiere of David Attenborough's latest project, Our Planet.

Brooklyn Beckham has landed a filming work in the epic Our Planet's epic Wildlife, Sir David, which was presented to a global audience last month

Brooklyn Beckham has landed a filming work in the epic Our Planet's epic Wildlife, Sir David, which was presented to a global audience last month

Beckham divides his time between a house in New York and a 31.5 million pound manor at Holland Park in West London.

He was in Wembley, in North London, to watch Salford City – a team he owns with Gary and Phil Neville, Paul Scholes, Nicky Butt and Ryan Giggs – being promised for the first time in the Football League.

MailOnline has contacted a Beckham representative for comments.

Beckham was in Wembley, north of London, to watch Salford City - a team he co-owns with Gary and Phil Neville, Paul Scholes, Nicky Butt and Ryan Giggs - to be promoted for the first time in the Football League

Beckham was in Wembley, north of London, to watch Salford City – a team he co-owns with Gary and Phil Neville, Paul Scholes, Nicky Butt and Ryan Giggs – to be promoted for the first time in the Football League

The retired footballer is not the only celebrity to have stolen steadily in 2018 while pronouncing himself for a greener planet.

It is said that Emma Watson, the actress of Harry Potter, visited the United States frequently last year.

This despite the 28 years of Brown University, a graduate of Brown University, often depicted wearing sustainable clothing during glitzy events and working with the Fairtrade People Tree fashion company.

Emma Watson at the first meeting of the G7 Advisory Board (Group of Seven) for Gender Equality with French President Emmanuel Macron. She also spoke out against climate change in the past

Emma Watson at the first meeting of the G7 Advisory Board (Group of Seven) for Gender Equality with French President Emmanuel Macron. She also spoke out against climate change in the past

Watson's spokeswoman said: "Emma pays to offset her air transport carbon emissions with Climatecare.org."

But the energy and climate change professor, Kevin Anderson, told the Sun Sunday: "They must give the example."

A few days after the publication of the letter of more than 100 "worried parents" – including actor Jude Law, former footballer Gary Lineker and musicians Jamie Cullum and Paloma Faith – asking for climate action.

A survey for the Commerce and Energy Department (Beis) found that four-fifths of the population are now somewhat or very concerned about climate change, its highest level since the start of the regular survey in 2012.

More than 100 "worried parents" - including actor Jude Law, former footballer Gary Lineker and musicians Jamie Cullum and Paloma Faith - issued a letter demanding climate action

More than 100 "worried parents" – including actor Jude Law, former footballer Gary Lineker and musicians Jamie Cullum and Paloma Faith – issued a letter demanding climate action

In the letter, 125 actors, writers, musicians, politicians, religious leaders and activists urged governments to declare a climate emergency and significantly accelerate the reduction of emissions "in the interest of our children and the planet".

TV presenter Lineker said, "The climate crisis affects all parents, no matter what we do or wherever we live.

"Together we must show politicians that this is an issue that matters to us and that we will judge them."

Yet, its carbon footprint is also subject to scrutiny.

In the past, he has published photos of business class trips to Russia when Terry Butcher had to settle for the economy.

Lineker would have generated 670 kg of CO2, while Butcher would have created only 420 kg.

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