Climatic changes are happening around the globe. The science of climate changeaffirms that most of these changes have been brought about by the actions of humanbeings.

While trying to understand the concept of anthropogenic climate change it isnoticed that significant ethical issues surround it and the question of responsibilitybecomes vital. Certain ethical issues including responsibility associated with climatechange are discussed in this Book.

This research examines and reviews some general or traditional concepts of individualand collective responsibility along with some specific literature concerning climatechange responsibility. The work of two philosophers, Walter Sinnott-Armstrong andBaylor Johnson is quite influential in this regard.

The central idea of the argumentsoffered by both the philosophers is that unless everybody acts, individual efforts todiminish carbon emissions will have little or no effect on climate change. For instanceSinnott-Armstrong assesses and rejects several ethical principles to arrive at theconclusion that one has no moral obligations to limit one's personal emissions inclimate change.

This idea is analyzed and shown to be inconsistent in this research. Alternatively it is agreed that the moral theories which Sinnott-Armstrong considersdo not put a restraint on the individual to curb her greenhouse gas emissions.

Therebya need to propose a different way of ascertaining moral obligation in climate change isrecognized. A knowledge based ethical relativist theory is suggested for the same.

This theory expects the agent to act in the light of the knowledge that exists andillustrates that commitments at the individual level cannot be different from thecommitments at collective level if one has knowledge about it that exist in today'sworld in case of climate change. It is concluded that this knowledge based ethicaltheory is one possible way to assign responsibility in climate change butconcomitantly it is also admitted that this theory may face certain limitations.

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