Challenging Environmental Science Quiz
Assess your mastery of complex climate mechanisms and recent mitigation strategies.
Quiz Questions
Answer all questions below and test your knowledge.
- 1
Which gas contributes the greatest increase in radiative forcing since the pre‑industrial era?
- 2
What is the most widely accepted estimate for equilibrium climate sensitivity to a doubling of CO2, expressed in degrees Celsius?
- 3
Which process accounts for the largest share of observed global mean sea level rise over the past two decades?
- 4
In which IPCC Assessment Report did the term "Anthropogenic Global Warming" first appear as a defined concept?
- 5
According to the IPCC's 2023 carbon budget, how many gigatonnes of CO2 can humanity emit from 2025 onward to have a 50% chance of limiting warming to 1.5°C?
- 6
Which renewable technology has achieved the lowest levelized cost of electricity in utility‑scale projects as of 2024?
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