Even though your question has been deservedly downvoted, it still deserves an answer. Global warming implies that our effect on the planet is restricted to an upward trend in global temperature. Although that's the principal result of human emissions, the issue manifests itself in many other ways, including but limited to: sea level rise, extreme weather events, substantial changes and extinction of flora and fauna, loss of coral reefs, loss of ice sheets, etc.

Climate change includes the broad ecological changes that stem from a warming planet, rather than a narrow focus on the warming itself.