Shock: High-speed train may not actually prevent much bad weather

HS2 high-speed route may only marginally cut emissions, studies show | John Vidal | Environment | guardian.co.uk

The HS2 high-speed route that was given the green light on Tuesday will cut a 200 yard-wide swath through nearly 100 miles of open countryside, adding to noise, air and visual pollution in some of Britain's finest landscapes. But while it could provide a viable alternative to flying for millions of people and may stimulate local economies by as much as £47bn over 60 years, studies suggest it may only marginally cut carbon emissions.