So what happened at the Copenhagen Climate Summit? Read what US President Obama thinks here: Obama agrees that Copenhagen was a disappointment.

Why was it a disappointment? The main reason was that no global treaty was agreed on. The progress that was made came as 5 nations agreed on climate  goals. As United Nations Secretary General Ban Ki-moon said, the accord marks an “essential beginning” in which some important countries, including Brazil and China, pledged to limit the global temperature rise to 2 degrees Celsius.