A few years ago, possibly in 2004, I visited the Eden Project; a mixture of perfectly tended meadows, terraces and exotic planting, topped off by a pair of impressive plastic “biomes” (they were building the third at the time), all in the setting of an abandoned clay pit in Cornwall, England. My family took home some wonderful memories from that day — it was steaming hot, so much so that the Tropical Biome had to be fully vented; my younger daughter had endless fun running around the mazes and gawping at the giant bee; my older daughter discovered what it was like to be soaked in a tropical mist.

Spin forwards four years, and something has gone bad in Eden — they are allowing themselves to be used as a platform for every major car company to do a spot of greenwashing. What better place to pretend you have the interests of the planet at heart than at the Eden Project, that bastion of sustainable tourism and ecological education for all generations? What better place to show that cars are not bad things — they are just misunderstood.

The official blurb makes for deeply uncomfortable reading:

"Why a car show at the Eden Project?

"Love them or hate them, cars are not going away. But road transport accounts for a fifth of our carbon dioxide emissions in the UK, so it’s time to transform the way we buy and use them.

"The good news is that we can reduce road transport carbon dioxide emissions by a massive 80% by 2050 if we start buying the right vehicles now and take our old bangers off the roads. The technology is out there and our Sexy Green Car Show brings it to you."

You can read this in one of two ways: first, that there is a general acceptance that car transport is not going away for a long time, so we need to make the best of the situation we have; second, that car transport is a good thing, and it can be made even better if it is made greener. The difference is subtle, but is important.

The first explanation is realistic — it accepts that there will be a need for some car transport, in some places for quite a while until alternatives are found or, more importantly, people stop having the need to travel so much. The second explanation is straight out of the greenwashing guide, written by the automotive giants. Yes, maybe individual vehicle emissions can reduce by 80% in 42 years (not that that is anything like sufficient), but the car companies are exploiting huge markets in Asia and South America, plus pushing to ensure car transport is the only option for travel in the industrial West: net transport emissions are unlikely to go down at all, regardless of how “green” individual vehicles are.

The second explanation is the true meaning of the Sexy Green Car Show. Take a look at the roster of companies showing at the event:

"All the major manufacturers will be flaunting their newest, greenest models including Ford, Peugeot, Citroën, Fiat, Volkswagen, SEAT, Honda, Axon, Lotus, Saab and Morgan. Vectrix’s electric motorcycle will also be on show, and the hydrogen-powered Morgan LIFE car will make its first public appearance in this country."

This is a trade event, designed to make car manufacturers look good, while still continuing their effortless plundering of the planet’s diminishing natural assets. Eden Project, you have well and truly been taken for a ride.