Question 43 (2 points) Global climatic change has been a controversial topic. Ho

Question

Question 43 (2 points) Global climatic change has been a controversial topic. However, almost all environmenta scientists agre that gases contribute to global dimate change. Carbon dioxide, methane, and water vapor are the main culprits, These "greenhouse gases" have increased dramatically in our atmosphere in the last 300 years, Human activities, chief among them the tapping and burning of fossil fuels for energy, significantly increase greenhouse gases in our twice preindustrial levels by mid-century and double again by the end of the century. Computer models have shown that this rise alone could raise Earth's wth due to rapid i rising greenhouse gases are to it is temperatures by 3 to 10 degrees Fahrenheit by 2100 on Earth is O 2) loss of O 4) aerosol spray cans

Explanation / Answer

The primary source of increased levels of greenhouse gases on earth is modern human lifestyle(option 3).

Burning fossil fuels for electricity, heat and transportation are the major changes in the human lifestyle.

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