Average Global Temperatures since 1850

I think humans are generally bad at prevention of and good at reaction to catastrophes.<p>The next 50 years are going to be interesting... let&#x27;s hope we leave the world in a manageable state for future generations.

Looking at the raw data, I wonder how accurate it is for the early days? Was it possible back in 1880, to measure temperature up to the third digit in accuracy?<p>I&#x27;m not questioning the data per se, as you can tell from looking at 2000 up to today that the median is rising.<p>I&#x27;m just a bit surprised by the accuracy in the late 19th century. I expected less.

The increasing of the global temperature is really dangerous and humanity seems to do nothing.<p>It is like a human body if its temperature changes a few Celsius degree from its normal temperature, it is the fever. If the person has a fever and it increases a few degrees, it might mean the death of the person. We are killing The Planet, it is a Climate Crisis.

Any ideas of What, WE, the individuals can do to make politician and countries change?

If it ever gets really bad, the Earth can easily be cooled surprisingly quickly by detonating massive bombs in the right places. We’re talking nuclear scale.

Please, let&#x27;s not go back to a debunked theory. Global Warming models did not work and we phased them out a long time ago. The real term for the past decade on climate science is Climate Change and Extreme Environment. There is a lot more data on this graph if you cross fossil data and ice sheet research.<p>Science is the only thing that everyone can agree with. I feel that it is our job to be accurate and not just do lazy one dimensional research. We might solve the wrong problem and just damage the environment on the process.

Only going back to 1850 is exactly the kind of thing someone would do if they wanted to cherry pick their data to suit a case. You have to go back much further. It is known that at that time we were coming out of a period of much cooler temperatures. See for example the year without a summer (1816).<p>There are periods of human history where it was warmer than it is now. For example, during the Viking expansion, and during the Roman expansion. Then things cooled off - for example the Viking and Roman contraction.<p>If you go to L&#x27;Anse aux Meadows in Newfoundland, you can see the remains of the only known Viking settlement in the new world. The buildings were made with logs from trees that do not exist there today because it is cooler now and does not support the tree growth required.

&quot;The data are a mix of the CRUTEM4 land-surface air temperature dataset and the HadSST3 sea-surface temperature (SST) dataset. The HadCRUT4 data are neither interpolated nor variance adjusted.&quot;<p>This is your typical half-truth (lie of omission). Even if the HadCRUT4 folks themselves don&#x27;t make these kinds of adjustments, the folks who provide the data sets which HadCRUT4 is based on most certainly do.