Albin B. Andersson

Global warming and Climate change - Variations and trends

News   •   May 12, 2014 11:24 EDT

NASA has during several years published monthly average global "Land-Ocean Temperature Index" values. Looking at tables of these values all the way back to the b eginning of the 1880´s gives the observer the impression of considerable temperature variations and irregularities - similar as for weather and climate in general. The temperature index data from NASA up to the first months of this year continue on this irregular and considerably variable path. So does also the trend of a global temperature increase which started around the end of the 1970´s.

The corresponding monthly average global temperature figures published vary considerably from year to year and so do seasonable and yearly mean figures. When decadal mean values are calculated the increasing temperature trend for the years from 1980 and on  are clearly visible as the IPCC has recently shown. The temperature and climate changes are thus long term trends. The governing factors, occurrencies etc. must be prolonged and of large magnitude to make lasting temperature and climate changes noticeable.

During the years 1980 and up till now the yearly world production data of the fossil fuels coal, oil and natural gas also show variations and increasing trends. The productions of coal and natural gas have e.g. more than doubled during this period. Therefore we may be allowed to assume that the large and varying emissions of the greenhouse gases H2O and CO2 from the burning of these fuels have about doubled and made a substantial and varying impact on the temperature increase. The connection seems obvious.

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