Well the answer is yes, and to demonstrate how I’m going to use two flatmates, Vegetarian** Sam** and Capitalist **Rufus**. They both work in central London, live in the suburbs and both require non-public transport at weekends, holiday in the same place and have very similar lifestyles. The only difference between them is the transport choices they make.

**Sam** takes the train (60.2g/km*) and bus (67.8g/km*) to work everyday. He has a 6 year old Ford Focus 1.8 TDCi (145 g/km*) which he drives at weekends.

**Rufus** rides a scooter (Vespa 50cc @ 72g/km**) to work and at weekends and refuses to use public transport. He (cue much teeth-sucking disapproval) also has a Porsche Boxster (227 g/km* for the weekends). And let’s try not to hate him just because he has a Porsche. Let’s pretend he uses it at the weekends to take old people to the seaside.

**Sam** and **Rufus** work in the same office everyday do exactly the same distance each year, so how can **Rufus**, the Porsche-driving capitalist scum be greener than his vegetarian, flip-flop wearing flatmate?

**The Commute:**

**Sam** and **Rufus** both travel from Clapham Junction to Liverpool Street every day. **Sam** takes the train to Waterloo (6.3km = 0.76 kg CO2) then the bus for (4.8 km = 0.65 kg CO2) giving a total of 1.41 kg per return journey.

**Rufus** goes direct door to door on his Vespa which is 8.9 km (compared to **Sam’s** 11.1km), producing 1.28 kg of CO2 for his return journey.

**The Weekend:**

**Sam** and **Rufus** both travel at the weekends, and they each rack up 4,000 miles per year driving in some form. **Sam** does all his miles in his Focus (934kg of CO2), whereas **Rufus** does 1,500 of these in his beloved Porsche taking old people to the seaside (548 kg of CO2), while the other 2,500 he does on his trusty scooter (290 kg of CO2), a grand total of 838kg.

**The Total:**

So where does that leave us?

CO2 Footprint Commute*** Weekends Total

**Sam** 310 kg 934 kg 1,244 kg

**Rufus** 282 kg 838 kg 1,120 kg

So vegetarian **Sam** takes public transport to work every day, drives an efficient diesel car but still has a 10% bigger carbon footprint than capitalist **Rufus** and his petrol guzzling Porsche even though they travel exactly the same distance.

So can you be green and drive a Porsche? Looks like it. It just goes to show that it’s not quite as simple as it seems to condone sports cars….

Sources:

* http://www.defra.gov.uk/environment/climatechange/uk/carbonoffset/codeofpractice.htm / VCA car fuel data.

** Clear analysis