I'll change the subject to electric cars. I read an article that stated it takes 70% more carbon to build an EV car then a combustion engine. Talk about carbon foot print.

YES  There's been several articles, along those lines.  And because the up front CO2 produced during manufacturing is so large, it takes long mileage on electric cars to try to catch up, or break even with gasoline powered vehicles-  Some never do catch up or break even.   A German study found that electric vehicles studied in their country caused more CO2 emissions than diesel powered ones.  Click Here  

And there's so many hidden costs, makes it tough to get all those EV negatives factored into the studies.  Makes the salesmanship much easier for those actively selling the EV to make reasonable sounding arguments, which really don't hold up, in the final, thorough analysis.  Fake news at work.

You've likely heard about about almost slave like conditions occur in mining materials for the EV batteries --cobalt, lithium, etc.   And those batteries are themselves loaded with problems.  Too many cases of vehicle batteries burning up.  Fire Depts. complaining those fires are very difficult to extinguish.  Causing owners homes to burn up.  

The batteries are massive size and weight.  Taking up most of the underfloor chassis area and much of the trunk.  Weighting 1,000 to 1,400 lbs.  EV battery packages, when trailing off to 80% of original capacity, are No longer of useful range to power the cars, requiring some replacements.  They're sensitive to deterioration when the car is often parked in the sun.  And those batteries replacement costs can run many $$ thousands. A Tesla 3 owner faced a $16,000 estimate to replace the car's battery package, when not within warranty, and when it failed after an accident involving a large rock.  Hybrid vehicle batteries can cost up to $8,000. 

Seems that Pete Buttigieg would prefer more people would ride around on electric bikes or scooters, in the future scenario he envisions.  SURE, just what the senior citizens need, in cold, rainy & windy weather Pete.  [Dumb & dumber]