<span>The best statement that describes why no binding agreement about global warming was reached at the Copenhagen Summit is that </span><span>E. Each conference has been held during leadership changes in the major countries.</span>
A. Poor and wealthy countries had different concerns.
Explanation:
This is one of the explanations for why there was no binding agreement about global warming in the Copenhagen Summit. The discussions in this summit often reflected a deep division between rich and poor nations. While rich nations were dealing with conservative delegations and the impact of the 2008 recession, the poorer countries were concerned with "climate justice" and their ability to continue growing.
It's debated; the credit is usually given to either Julia Ward Howe or Anna Jarvis. Howe was born first, so if you're looking for initial efforts, I would go with her.
