Part A:
The trends in average global temperature and atmospheric carbon dioxide concentration show an increase over the time period shown in the graph. Both variables show a steady rise from 1880 to 2009, indicating a positive correlation between the two.
Part B:
One human activity that has likely contributed to the changes shown in the graph is the burning of fossil fuels. To reduce impacts on climate, individuals and industries can transition to renewable energy sources such as solar, wind, and hydro power. Another way to address this issue is by promoting energy efficiency and conservation.
Part C:
One possible impact to the biosphere if the trends in the graph continue is further changes to the climate, leading to more frequent and severe weather events, loss of biodiversity, and disruption to ecosystems. This could result in a decline in population numbers of certain species, changes in habitat availability, and ultimately affect the overall health and stability of ecosystems.
The graph below shows average annual global air temperatures (bars) and atmospheric carbon dioxide concentrations (line) between 1880 and 2009.
400
380
360
C*O_{2} Concentration (ppm)
340
320
300
280
260
1940
2000
CO, Concentration
1980
Year
1960
1920
58.5
58.0-
57.5
57.0
56.5
1880
Global Temperature (°F)
1900
"Atmospheric carbon dioxide concentrations and global annual average temperatures over the years 1880 to 2009," Global Climate Change Impacts in the United States, January 1, 2009
Compare the trends in average global temperature and atmospheric carbon dioxide concentration over the time perio shown in the graph.
Part A
(2 points)
BIU
Part B
What is one human activity that has likely contributed to the changes shown in the graph, and what could be done to change that activity to reduce impacts on climate?
(2 points)
Part C
What is one possible impact to the biosphere if the trends in the graph continue?
(1 point)
1 answer
1 answer