I agree with you that the agreement between Obama and Chinese President Xi is bogus and for purely political purposes. I also agree with you that the climate has changed -- it's always changing. I agree with you that in the 20th Century it has warmed, although since about 1998 the warming has stopped for reasons not clearly understood by climate scientists. This is contrary to what most climate models have predicted. In that respect the climate models, which all the alarmists cite as the reason for their alarmist, have been falsified. Additionally, as to the warming that took place before the warming stopped around 1998, there has been no scientific proof determining how much of that warming was caused by anthropogenic forcing and how much was natural variation. As for major weather events even the IPCC has stated that there is no proof that severe weather is being caused by the warming, until around 1998, climate, but that has not been widely cited in the press.



In fact, there is great uncertainty in the science community regarding the extent of past anthropogenic forcing, the feedbacks caused by CO2 warming, (whether they are net positive or negative, which is important because CO2 alone will not produce dangerous warming), the sensitivity the climate is to a doubling of CO2 ( a number of recent papers by climate scientists think the sensitivity used by the IPCC is too high) to name just a few of the many scientific uncertainties regarding the threat of catastrophic anthropogenic global warming (CAGW"). These and many other issues related to (psychological, sociological, political and economic) in addition to the science are discussed on Dr. Judith Curry's blog "Climate Etc. at "judithcurry.com". As a person with an interest in this subject, being a follower of Dr. Curry is a must. Just to confuse matters more, you may want to view to this video, which is currently the subject of a major project at the CERN cloud chamber in Switzerland called the "Cloud Experiment". The video link is as follows: https://www.youtube.com/watch?v=ANMTPF1blpQ

