This page is a work in progress and will be updated as more information is added. The aim is to provide a comprehensive overview of the climate and the changes that are happening. The information will be presented in a way that is easy to understand and will be updated as new information becomes available.
Lets start with a look at the AMOC as this is something which could clearly affect us here in the UK in an adverse way. Climate drifting to that nearer to Finland and Norway as the heat transfer from the southern hemisphere slows down.
Note the steep rise in CO2 levels starting in the late 1600s and then rising dramatically from there but especially in the 1900s.
This rise, gradual at first and then accelerating correlates well with the increasing use of fossil fuels. Approximately 2.6 million tonnes late in the 17th century to four billion tonnes late in the 20th century. Add to this oil at five trillion barrels all of which was geologically stored carbon now released to the atmosphere
COâ‚‚ increased from ~315 ppm to ~420 ppm. Rate: ~2 ppm/year.
COâ‚‚ increased from ~295 ppm to ~370 ppm. Rate: ~0.75 ppm/year.
COâ‚‚ increased from ~280 ppm to ~370 ppm. Rate: ~0.09 ppm/year.
Decadal measurements are taken from dramatically made at the Mauna Loa Observatory in Hawaii and the South Pole. The data is collected by the Scripps Institution of Oceanography and the National Oceanic and Atmospheric Administration (NOAA). The data is then processed by the Global Monitoring Laboratory. The timeframe for this is since 1958 when continuous monitoring commenced.https://flip.it/xyyKvu
For the century and millennial measurements, ice core data is used. Calculation: Analyze COâ‚‚ concentrations from ice core layers dated using techniques like layer counting or isotopic analysis. Calculate the rate of change over centuries or millennia by averaging trends over those periods. For example: Over the past 1,000 years, COâ‚‚ levels rose from ~280 ppm to ~420 ppm, giving an average rate of ~0.14 ppm/year.
A few raw links which I intend Following up and expanding on later.
More links to follow