Name for climate impact from rising atmospheric CO2 The increasing atmospheric concentration of carbon dioxide and its strong influence on Earth’s climate is referred to as what?

Introduction / Context:
Carbon dioxide is a long-lived greenhouse gas that alters the radiative balance of the planet. As its concentration rises, Earth retains more longwave (infrared) radiation, changing temperature patterns, hydrologic cycles, and extremes. Different terms are used in the literature to describe the mechanism and the outcome.

Given Data / Assumptions:

• CO2 increase is the driver under discussion.
• We distinguish between the physical mechanism and the broader climatic consequence.

Concept / Approach:
The “greenhouse effect” describes the physical mechanism: certain gases absorb and re-emit terrestrial infrared radiation, reducing outgoing energy to space. “Global warming” describes the observed and projected increase in global mean surface temperature and associated climate changes that result from strengthened greenhouse forcing. Because the question asks for the name of the effect and its profound climatic impact, both terms apply together in common usage.

Step-by-Step Solution:

Verification / Alternative check:
Climate assessments consistently link CO2 forcing (greenhouse effect) with observed warming trends (global warming), validating dual terminology.

Why Other Options Are Wrong:

Common Pitfalls:
Equating the greenhouse effect only with CO2; water vapour, methane, and other gases also contribute, but CO2 is the principal anthropogenic driver.

Final Answer:
both (b) and (c)