The graph below shows natural and human impacts on climate. Which
Thermal disruption (W/m?)
Agents of Climate Change
Natural
Human
processes activities
Halocarbons
Ozone
со,
Net change
Greenhouse gases
Net change
In energy
Total aerosols due to human
from Sun
activities
Warming effect
Cooling effect
assertion do the data support?
A. There is no reason to believe humans are causing global warming.
B. Human activities and natural processes have equal impacts.
C. Recent elevated temperatures are caused by human activities.
D. Natural processes are evidence against global warming.