Over the past few years Johnston Press has adapted its production process to make sure every edition of the paper is as environmentally friendly as possible.
The Express is part of the Yorkshire Weekly Newspaper Group, which boasts its own Green Team, helping to reduce the carbon footprint at Express House on Southgate, where the paper is written and edited each week.
The team has introduced simple measures, such as awareness campaigns to conserve resources like electricity and paper.

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And this week, to mark the Express eco edition, staff across the group set themselves a series of green challenges, which included ditching their cars and cycling to work, walking or catching public transport.
But it doesn't end there.
Sheffield Web in Dinnington, where the paper has been printed on 100 per cent recycled paper since 2006, was designed with the environment in mind.
Managing director Nick Boxall said: "Historically the industry has had a bad reputation as far as the environment is concerned, but now that couldn't be further from the truth.
"Not only do we use recycled paper where possible, but the building is fitted with the latest technology to make sure energy isn't wasted in the printing process or the working environment. We also recycle as much of our waste as we can, whether that be water, solvent or aluminium plates."
Unsold papers end up at UPM Shotton, a paper mill in north Wales, where they are recycled – just like many copies of the paper that are popped in special bins by householders each week to be collected by Wakefield Council.
Craig Robinson, the senior purchasing manager, said: "It can take less than two weeks from the time a paper is 'thrown away' for it to be back on the shelf as a new copy of the Wakefield Express.
"Not only does the process save trees, but using recovered paper instead of making it from wood, saves energy as well and we go one step further by making our own fuel from the ink that comes off the paper we recycle."