Back in 2008, I wrote here, in this blog that:
"While most Governments of the world are attempting to address the dramatic increase of noxious gases into our breathable atmosphere the worlds climate continues incessantly to deteriorate."
Nothing much has changed since from the collective efforts of world governments, except that we now know that earth's average temperature, has, due to increased CO2 in the atmosphere warmed up one degree Centigrade in last 100 years.
One degree C may not seem much on the face of it but if it actually rose to four degrees all of the equatorial regions of the world would become uninhabitable.
It's predicted by climate scientists that if the world were to continue to put out the same CO2 levels, then by the end of the century the world's average temperature will rise another 3 degrees above our existing average temperature.