renovation that will reduce carbon dioxide emissions by 400 tons?
2) The manager of a European company is considering a factory
renovation that will reduce carbon dioxide emissions by 400 tons
per year and cost 0,000. Without the renovation, each year
the company will have to buy emissions permits for 400 tons at
per ton.
(a) (1 pt) How much will the company have to spend on emissions permits
each year?
(b) (3 pts) What is the payback time for the factory renovation,
based on the savings in emissions permit purchases?
Tagged as: carbon dioxide emissions · payback time · renovation
(a) (400 ton/yr)($30/ton) = $1,200/yr
(b) ($130,000)/($1,200/yr) ? 73.5 years
This is an exceedingly poor ROI. Attempting to implement the renovation would almost certainly result in the manager being discharged and replaced.
The surface area of Earth is about 510,072,000 km²
The weight of Earth’s atmosphere is then
W = (510,072,000 km²)[(100,000 cm/km)(1 in./2.54 cm)]²(14.696 lb/in^2)(1 ton/2,000 lb)
W ? 5,809,426,000,000,000 tons
W ? 5,809,426 billion tons
(400 tons)/(5,809,426 billion tons) ?
0.000068854 parts per billion ?
0.068854 parts per trillion ?
68.9 parts per quadrillion
It would take around a million years for 400 ton/year to have any effect one way or another on our atmosphere.