Everybody’s talking about: travel troubles, zoo tigers and post-Copenhagen campaigns
In a week of the big freeze, environmentguardian.co.uk's interaction manager rounds up this week's hotly discussed topics
Beware the iPod zombie cyclist
Edmund King: Plugged in to MP3 players, this new breed among urban cyclists is not just a nuisance, but a menace – mainly to themselves
Bike hire revolution hits Cardiff
It may not be on the scale of similar projects in Copenhagen or Nice, but the Welsh capital's bike hire scheme has a lot going for it
Is the new London hire bike any good?
It's solid and practical, if a little heavy. But will people be able to resist stealing it?
Better by bike: latest cycle fashions ward off recession’s chill
Visitors up by 60% as Cycle Show, UK's biggest bicycle symposium, rolls out new models plus stylish anoraks
Honda unveils U3-X – a battery-powered unicycle
Japanese car maker says quirky personal mobility vehicle shaped like a number eight will revolutionise travel
Blackpool launches on-street cycle hire scheme
Lancashire seaside resort takes inspiration from Parisian scheme to get residents and visitors cycling
Cycling on stage? Pedal Pusher is theatrical revolution
How a new play imaginatively recreates the Tour de France
Rail, bus and bike travel the focus of Brown’s transport strategy
National cycling plan to be developed to show councils and employers how they can boost two-wheeled travel
Boris Johnson must deal with pollution blindspot in cycling policy
Matt Seaton: If the mayor wants to make London safer for cyclists he must stop fiddling with mirrors and tackle the more serious but less visible matter of air pollution
More cyclists means fewer accidents, says report
York is safest place to ride your bike in Britain, while Calderdale, West Yorkshire is the most dangerous, research finds
Boris Johnson unveils blueprint for London’s ‘cycling revolution’
Plans would allow cyclists to pick up one of 6,000 bikes at the 400 docking stations planned for the capital by 2010
Lance’s stolen bike is a lesson for us all
Adam Vaughan: If cycling legend Lance Armstrong can have his bike stolen, what hope is there for the rest of us?
Two wheels
Fiona Russell: During five years of daily cycling in Glasgow I have become accustomed to 'almost dying' on a regular basis
Despite progress, cyclists in Britain still face a rough ride
Britain has a lot to learn from the Netherlands about encouraging cycling as a way of life, writes Iris Coates