Coal reserves for the World at the present rate of consumption will last for about ________(ballpark figure).
A ) 200 years
B ) 2.9 years
C ) 40 years
D ) 10 years

Answer: C. 40 years. Coal reserves for the World at the present rate of consumption will last for about 40 years. While estimates vary slightly, it is generally accepted that, at the current rate of global consumption, the world’s coal reserves will be depleted in around 40 years. Coal is one of the main energy sources used worldwide and its reserves are slowly but surely diminishing. Without significant advancements like carbon capture and storage technologies, coal reserves are expected to be gone in 40 years.