The specious argument that the huge majority of climate scientists who acknowledge the human contribution to global warming and the likely severe consequences of that warming, are somehow all part of conspiracy to produce false data and lie to the public because they are being paid off by someone to do it is completely laughable. The only certain source of money is the oil and gas industry which openly funds the Heartland Institute to produce reports denying the science of almost everyone else.
Of course first the deniers claimed there was no global warming, claimed the data showing the upward trend was bad data, or outright lies. Screams of fraud about the emails from the
Climatic Research Unit, proving that the scientists were making it all up.. but it was a big nothing and proved nothing.
So instead the deniers changed their attack. Instead of saying there was
no global warming [that attack failed], they switched to saying it wasn't due to any human causes. Or if it is due to human causes the contribution is so small, or if it is entirely human caused society will not ever change so there is nothing you can do and wouldn't it be great to grow bananas in Canada.
Here is the simple truth. The temperature of both the atmosphere and the oceans is rising. The rise is completely consistent with the models that use predictions of the effects of CO2 from human activity as the major source of the temperature change. No model using sun spots or earth wobbles or clouds or the lack of pirates provides an explanation of what has been clearly and undeniably seen over the last 50 years.
As to my graph being "hopelessly out of date" as it only goes to about 2012. Here are links to several more recent reports all of which extend the data and show exactly the same conclusion.. the mainstream climate scientists predictions have been accurate.
UNFCC,
ScienceNordic,
American Geophysical Union Harvard,
Guardian ,
The US government,
Worth noting once again in this Sept 2018 report produced by the Trump administration..
Quote:
Those who deny the scientific evidence of human-caused global warming turned the slowdown into a slogan: “Global warming stopped in 1998.” In scientific journals and assessment reports, climate experts described the episode as a “pause” or “hiatus” in the previous decades’ rapid warming: they knew it wouldn’t last.
Not only was 1998-2012 the warmest 15-year period on record at the time, but greenhouse gases continued to climb to new record highs, and other climate indicators continued to show the impacts of long-term, global-scale warming: subsurface ocean heating, global sea level rise, the melting of glaciers and ice sheets, and record-low Arctic sea ice extent.
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This report even includes, for the deniers, specific comments about sunspots, volcanoes, El Ninos, and lots of graphs and charts, again showing how accurate the climate models have been.