What is the predicted global temperature increase for B1 in the year 2100?

Question

BlackTom AI · Accepted Answer

The prompt asks for the predicted global temperature increase for B1 in the year 2100. Unfortunately, the provided data includes an answer field with '1.4 degrees C' but the answer_options field is empty, so there are no discrete alternatives to analyze or compare.

Given the typical context of climate scenarios, B1 is a lower-emission scenario from the IPCC framework that often yields roughly a 1.0–1.8°C increase by 2100 relative to pre-industrial levels, with figures around 1.4°C being a commonly cited midpoint in some assessments. Therefore, if we take the supplied answer as the stated prediction, 1.4 degrees C aligns with a plausible central estimate for a lowemission pathway like B1.

However, since there are no explicit answer choices to evaluate, we cannot critique alternate possibilities or explain why other options might be incorrect. In general, when options are present, one would compare each choice against standard IPCC-style projections for the B1 scenario, noting that higher numbers (e.g., around 2°C or more) would correspond to higher-emission scenarios (like A1 or RCP-based pathways), while much lower numbers would require assuming significant cooling or near-zero warming, which is inconsistent with the scenario framework.

In summary, with the data given, the stated correct value is 1.4 degrees C for the B1 pathway by 2100, but a full option-by-option justification cannot be provided without the actual list of alternatives to analyze.

Section Merge: Earth 103N (Spring 2025) Graded Midterm 1

What is the predicted global temperature increase for B1 in the year 2100?

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