E.ON, one of the
The offer, which is part of the Carbonfootyprint.com campaign, will provide free travel with National Express in a bid to cut down carbon emissions.
Leaving your car at home will reduce your carbon footprint as going by coach is the most environmentally-friendly form of transport. For example, if City fans take the free coach for the 430-mile round trip to Upton Park, they could save nearly 3000kg of CO2, the equivalent of powering a TV for over 67,000 hours.
There are currently 42 places left on the coach to West Ham and City have today confirmed there are still tickets available for the game too, priced just £12 for seasoncard holders and £15 for non-seasoncard holders.
All you need to do to reserve your place on the coach is register at www.carbonfootyprint.com
The site also gives you further information about how you can do your bit to cut carbon emissions, such as car-sharing schemes and walking to a game or watching it in the pub with your mates.
E.ON and National Express intend to keep the offer going for every round of the FA Cup until the final.