Climate models predict that, if the RCP8.5 scenario materialises, the rise in the Earth’s temperature by the end of this century would be about

Question

BlackTom AI · Accepted Answer

The question asks: Climate models predict that, if the RCP8.5 scenario materialises, the rise in the Earth’s temperature by the end of this century would be about. The provided answer indicates 'a. 4°C'. Notably, the option list is missing in the data, so we cannot evaluate alternative choices side-by-side. Nevertheless, we can discuss how to think about this question and the typical warming ranges associated with RCP8.5.

Contextual background: RCP8.5 represents a high-emission pathway with substantial greenhouse gas concentrations by the end of the century. Climate model projections commonly report global mean surface temperature increases relative to preindustrial levels. Under RCP8.5, many ensembles project roughly around 3.5°C to 4.5°C warming by 2100, with some models peaking higher or lower depending on feedbacks, climate sensitivity, and aerosol forcings. In broad terms, a ballpark of about 4°C is a representative central tendency in many assessments, though a range exists.

Analysis of possible options (in a typical scenario with multiple choices):
- If an option around 4°C is provided, it aligns with the common estimate for end-of-century warming under RCP8.5 in many model ensembles. This would reflect the mean or median projection across multiple climate models, acknowledging natural variability and model differences.
- Lower warming values (e.g., near 2°C or less) would generally be associated with much lower emission scenarios or very strong negative forcings, which would not characterize RCP8.5. These would be inconsistent with the high-emission pathway.
- Higher warming values (e.g., above 5°C) could occur in some models or in specific regional assessments, or if certain feedbacks are stronger, but they are less representative of the central tendency across the full ensemble for the end of the century under RCP8.5. If such an option existed, it would reflect upper-bound possibilities rather than the typical projection.
- If the option list included qualifiers like 'approximately', 'around', or 'approximately 4°C', those would be consistent with a central estimate, whereas precise figures (e.g., '4.2°C' vs '4.0°C') would require specification of the model ensemble and time horizon.

In sum, given the common interpretation of RCP8.5 projections, a rise of about 4°C by 2100 is a plausible and frequently cited central estimate. The justification hinges on the long-term accumulation of greenhouse gas forcing under a high-emission scenario and the climate system’s response as captured by climate models. The absence of other options prevents a formal multiple-choice comparison, but the stated figure corresponds to a typical projection range for this scenario.

Dashboard QUIZ Multiple choice questions - Part 3

Climate models predict that, if the RCP8.5 scenario materialises, the rise in the Earth’s temperature by the end of this century would be about

View Explanation

Log in for full answers

Similar Questions

Given the figure below, reproduced from the IPCC Sixth Assessment Report, showing temperature projections for a variety of scenarios. Which temperature increases by 2100, relative to an 1850–1900 baseline, in the SSP3-7.0 scenario are NOT very likely? (3 answers)

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

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler