I travel about 400 miles per month by car in a vehicle that gets 25mpg. That's 16 gallons/month or 281.6lb of CO2 per month. What's the break-even on how many

I travel about 400 miles per month by car in a vehicle that gets 25mpg. That's 16 gallons/month or 281.6lb of CO2 per month. What's the break-even on how many lbs of CO2 I'd have to pump into the atmosphere before it was more environmentally friendly to produce an entire new automobile with 800lbs of batteries?