Activities Causing Enhanced Greenhouse Effect (Leaving Cert CASD): Quizzes
📚Quizzes
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Practise the questions
10 questions from this quiz
When did human activities begin to dramatically intensify the natural greenhouse effect?
When did human activities begin to dramatically intensify the natural greenhouse effect?
Around 1750 (Industrial Revolution)
How much have CO₂ concentrations increased since the Industrial Revolution?
How much have CO₂ concentrations increased since the Industrial Revolution?
From 280 ppm to over 410 ppm
What proportion of global CO₂ emissions does the transport sector account for?
What proportion of global CO₂ emissions does the transport sector account for?
Around one-quarter
Which is the largest single source of human-caused greenhouse gas emissions?
Which is the largest single source of human-caused greenhouse gas emissions?
Burning fossil fuels for energy
What percentage of total global emissions does deforestation account for?
What percentage of total global emissions does deforestation account for?
About 10%
How much of total greenhouse gases do agricultural practices contribute?
How much of total greenhouse gases do agricultural practices contribute?
Around one-third
Which greenhouse gas do livestock and rice cultivation both produce?
Which greenhouse gas do livestock and rice cultivation both produce?
Methane (CH₄)
What evidence shows rising CO₂ comes from human activities, not natural sources?
What evidence shows rising CO₂ comes from human activities, not natural sources?
Different isotopic signature
What do climate models show about natural influences alone on current warming?
What do climate models show about natural influences alone on current warming?
They cannot explain current warming
What did the IPCC conclude about human influence on the climate in 2021?
What did the IPCC conclude about human influence on the climate in 2021?
It is unequivocal humans warmed Earth