Climate change mitigation to a level of 1.5 degrees Celsius can be achieved by radically cutting greenhouse gas emissions.

Question

BlackTom AI · Accepted Answer

The statement to evaluate is: Climate change mitigation to a level of 1.5 degrees Celsius can be achieved by radically cutting greenhouse gas emissions.
Option 1 (True): When considering the scientific literature and policy analyses, limiting warming to 1.5°C requires deep, rapid reductions in greenhouse gas emissions across sectors, along with complementary measures such as carbon dioxide removal, behavior change, and technology deployment. Proponents argue that aggressive emissions cuts, on the order of net-zero or net-negative by mid-century in many pathways, could plausibly limit warming to 1.5°C, though this depends on near-term action, scale, and societal changes. The statement is aligned with many IPCC scenarios that rely on radical transformation of energy systems, industry, transport, and land use, coupled with active measures to remove CO2 from the atmosphere. 
Option 2 (False): If interpreted as emissions cuts alone guaranteeing 1.5°C, this would overlook uncertainties and potential feedbacks in the climate system, the need for rapid decarbonization at unprecedented scale, and the necessity of removing legacy CO2. Some analyses emphasize that while radical cuts are essential, they may not be sufficient without additional strategies, and that real-world feasibility, equity, cost, and political constraints can complicate achieving this target solely through emissions reductions. 
Option 2 can also be read as suggesting certainty about achieving 1.5°C solely via cuts, which ignores the role of uncertainties in climate response, methane feedbacks, and the potential need for negative emissions technologies. This makes the statement untenable if interpreted as a guaranteed outcome without addressing these caveats. 
Overall, evaluating the claim requires acknowledging that reaching 1.5°C depends on the magnitude, speed, and global coordination of emissions reductions, plus possible reliance on negative emissions; it is not guaranteed simply by cutting emissions radically without considering these additional factors. 
In summary, the core idea behind the statement emphasizes that radical emissions reductions are central to the 1.5°C pathway, but the full feasibility depends on multiple interacting factors and does not guarantee success in isolation. Therefore, analyzing the option as a true/false claim hinges on whether one accepts that extreme reductions can achieve the target under favorable conditions and timelines. The discussion above illustrates why the statement is treated as true within many climate scenarios, while also acknowledging the caveats that could lead to a nuanced interpretation.

Climate change mitigation to a level of 1.5 degrees Celsius can be achieved by radically cutting greenhouse gas emissions.

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