Read the excerpt from "Climate Change: An Overview: This excerpt primarily describes the
By the early twentieth century, carbon emissions from
fossil-fuel burning reached 1 billion tons a year
Automobiles, airplanes, and domestic and agricultural
energy demands all contributed to the rising trend. In
the 1950s, scientists used a new generation of
equipment to confirm that carbon-dioxide
concentrations were doubling and that this would have
the effect of increased temperatures.
long-term effect of increasing carbon emissions.
o long-term effect of decreasing temperatures.
short-term effect of decreasing the use of new
technology
Oshort-term effect of increasing energy demands.