The UK needs a "modal shift" from road to rail if greenhouse gas emissions from transport are to be curbed, a report concludes.
The Institution of Mechanical Engineers (IMechE) says changes are needed to government policies on transport pricing, energy and town planning.
A train journey can produce about one tenth of the carbon emissions generated if the same trip is made by air.
The report's authors say substantial investment in the railways is needed.
"We have ambitious government targets for transport emissions, but transport emissions are static," said Cliff Perry, vice president of IMechE's Railway Division and a former head of Thameslink under British Rail.
"Eighty-five percent of transport emissions come from roads, so if we are serious about doing something, we must hit road transport."
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Comparing emissions between various forms of transport is not a straightforward matter, as factors such as the efficiency of engines, the number of people on board and, for electric trains, how the electricity was generated all affect the final equation.
IMechE calculates that on average London to Paris trips, people travelling by car generate two and a half times more CO2 than those relaxing in a train, while an air passenger produces 10 times more.
http://news.bbc.co.uk/1/hi/sci/tech/7277757.stm
The Institution of Mechanical Engineers (IMechE) says changes are needed to government policies on transport pricing, energy and town planning.
A train journey can produce about one tenth of the carbon emissions generated if the same trip is made by air.
The report's authors say substantial investment in the railways is needed.
"We have ambitious government targets for transport emissions, but transport emissions are static," said Cliff Perry, vice president of IMechE's Railway Division and a former head of Thameslink under British Rail.
"Eighty-five percent of transport emissions come from roads, so if we are serious about doing something, we must hit road transport."
Learning Japanese
Comparing emissions between various forms of transport is not a straightforward matter, as factors such as the efficiency of engines, the number of people on board and, for electric trains, how the electricity was generated all affect the final equation.
IMechE calculates that on average London to Paris trips, people travelling by car generate two and a half times more CO2 than those relaxing in a train, while an air passenger produces 10 times more.
http://news.bbc.co.uk/1/hi/sci/tech/7277757.stm