Unlike its 2010 equivalent, the Labour Party's Green Plan, launched today, contains no mention at all of cycling or transportation policy.

The Labour Party today presented its environmental mini-manifesto, the Green Plan, outlining the steps it will take if elected to tackle climate change, protect the environment and deal with air pollution.

Transportation accounts for around a quarter of UK greenhouse gas emissions, according to Government figures and the Green Party devotes an entire chapter of its manifesto to transport. You might therefore expect some commitment in the Green Plan to limiting CO2 emissions from transportation, but it's not there.

Along with walking, cycling is the most environmentally benign way of getting around, with a minimal contribution to greenhouse gas production or other atmospheric pollution.

In excluding transportation from its Green Plan, the Labour Party has missed the opportunity to detail how it will "promote cycling", as promised in its main manifesto.

It's a substantial change from Labour's 2010 paper, A green future fair for all, which committed Labour to supporting cycling as a means of reducing transport emissions.

In that paper, the party pledged to "drive down emissions from all forms of transport" with "support for buses, cycling and walking".

In particular, the 2010 Labour 'green manifesto' pledged to adopt "strategies to increase cycling and walking."

It cited the Cycle Demonstration and Sustainable Travel Towns and said: "Our new Urban Challenge Fund will provide finance for local authorities that establish ambitious sustainable travel plans with cycling, walking and public transport at their heart."

The new Green Plan was launched by Maria Eagle and Caroline Flint, the Labour Party's Shadow Secretary of State for the Environment, Food and Rural Affairs, and Shadow Secretary of State for Energy & Climate Change respectively in the last Parliament. We have contacted Ms Eagle and Ms Flint to seek clarification regarding the omission of transportation policy.