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Boris Johnson has flown around 400 kilometres to Cornwall from London for the G7 summit, where he will discuss tackling climate change with world leaders.
The government s own figures suggest the trip produces more than five times as many greenhouse gases as traveling by train.
A planespotter saw an identical jet to one used by the Prime Minister making a test flight to Newquay Airport from London.
The UK is hosting the COP26 climate change summit later this year.
Boris Johnson flew to the G7 Summit in Cornwall by jet on Wednesday, creating greenhouse gas emissions over five times greater than the equivalent train journey, according to the government s own emission figures.