The IPCC "consensus" on climate change causes has not stood well, either by the test of empirical observations nor by the newer science research - essentially, the original "consensus" has proven to be a very weak gruel
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Read here. Among scientists, it has become common knowledge that the IPCC's climate models continue to be divorced from reality (see chart left). The models are the foundation of "consensus" that the IPCC and climate doomsday scientists fabricated in an attempt to stifle debate.
As the adjacent updated IPCC chart shows, the recent years of non-warming, despite a massive increase in human CO2 emissions, is an empirical evidence consensus of a scientifically lame AGW hypothesis promulgated by the IPCC.
While the empirical evidence continues to corroborate the failure of the IPCC "consensus" and its climate models, scientists push on with their research to better understand what are the real climate change causes that would drive global temperature change, be it warming or cooling.
Indeed, a lot of new effort has been focused on atmospheric aerosols and their impact on global temperatures, which everyone agreed the IPCC was woefully ignorant of. The most recent scientific efforts have proven conclusively that aerosols are a major influence on temperatures and climate change - unfortunately, there is no "consensus" as to direction and degree of influence.
"New papers are constantly popping up in scientific journals discovering some amazing new impact of dirty air...“Researchers have yet to fully analyse the new results,”...“these are just the first wave of a deluge in modelling data.”...“This is fundamentally new science,”...“The new generation of models is changing the kinds of questions we face as scientists.”...It seems that climate modelers are finding surprises galore with their new play toys—warming and cooling, drying and increased precipitation—all linked to aerosols...Inundated by a wave of new results, confusion reigns. “What we need now is to really understand what the models are doing, and why they differ,”..."
Adding to the major aerosol confusion that climate science now has, is the remaining huge and original unsolved mystery of CO2. Yes, CO2 and its associated 'carbon cycle' still remains a significant mystery beyond scientists grasp.
The newest research confirms there is a 'Carbon [CO2] Puzzle' that scientists just can't explain. This remains a bold admission that historical climate change (in terms of CO2's impact) remains beyond the comprehension of the IPCC and its computers; and, likewise, climate change of the future science is still unable to solve the basic CO2 riddle due to a very fundamental lack of knowledge - "where the heck does CO2 go?".