Energy and Climate Change minister tells Conservative conference of plans to challenge Big Six while George Osborne rejects UK climate leadership
$6bn network designed to cut journey time between San Francisco and Los Angeles to 30 minutes has turned to crowdfunding sites
Business leaders claim there is no business case for the line linking London with Birmingham, Manchester and Leeds
Alstom, Nissan, and rail industry among the members of new group aiming to promote the environmental and economic case for electric transport
High speed rail line set to go ahead, after judge throws out nine out of 10 challenges to £33bn project
Green Party Leader Natalie Bennett argues the government should improve "Slow Speed 1" regional lines before throwing its cash at High Speed 2
From Green Deal loans to RBS energy efficiency loans, we run down the top stories from the past five days
David Cameron calls high-speed rail link an "engine for growth" that will reinvigorate regional economies
Study suggests bigger than expected carbon savings can be realised by ensuring freed up rail capacity is used for freight
Extending high-speed rail beyond Birmingham would increase emissions benefits fourfold, but savings dependent on a green energy system