By 2100, average temperatures could rise by how many degrees?
Nope — More!
Correct Answer: B and C. Since the Industrial Revolution of the mid-18th to mid-19th century, the greenhouse effect has intensified as human activities have increased the amount of carbon dioxide in the atmosphere by 30 per cent, nitrous oxide by 15 per cent and methane by 100 per cent. These increases have had a direct impact on climate, and average global temperatures have risen significantly. In fact, temperatures have increased by 0.74°C in the last 100 years, mostly because of the intensification of human activities like urbanization, combustion of fossil fuels and use of cars.
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