CBDR equity principle – UGC NET Question

Common but differentiated responsibilities (CBDR) acknowledges that all states share responsibility for global environmental protection,but not equally. Developed countries,with higher historical emissions and greater capacities,are expected to take the lead. This reflects an equity oriented approach among nations. The stem asks what concern the principle mainly reflects,which is fairness or equity. Hence Option B is correct.

Option A:
Technology monopoly would mean control of technology by a few actors and is not the normative basis of CBDR. The principle calls for shared but differentiated obligations,not monopolies.

Option B:
Equity in climate policy means recognising differences in historical emissions and capabilities while allocating mitigation and adaptation burdens. CBDR is a concrete expression of this idea,matching the description in the question.

Option C:
Homogeneity assumes countries are similar,which CBDR explicitly rejects. It is based on recognising differences,so Option C contradicts the principle.

Option D:
Isolation is not encouraged by climate agreements,which require cooperation. It has no connection to CBDR,so Option D is inappropriate.