Basically the Accord summarized that global temperatures should not exceed more than 2 degrees and that countries affected by climate change were to be compensated by giving them financial support to combat climate change.
UN will announce the list of signatories soon but so far here are some of the pledges made by countries.
China - to reduce "carbon intensity" by 40-45% from 2005 by 2020.
India - to reduce carbon intensity by 20-25% from 2005 by 2020.
US - aim to cut emissions by about 17% by 2020, from 2005 levels.
EU - 20% emissions cut by 2020 from 1990 levels, and 30% if other nations deepen their reductions.
Brazil - to aim for 36-39% below projected levels by 2020.
Japan - 25% below 1990 levels by 2020