Question

What was the primary cause of the growth in emissions that results in global warming?

A.) human activity
B.) mining operations
C.) melting ice caps
D.) cars

Answer 1

B. cars Human activities, such as the burning of fossil fuels and changes in land use, release large amounts of CO2, causing concentrations in the atmosphere to rise.The current CO2 level is higher than it has been in at least 800,000 years.