it completed 35 years, on august 8, 1975 was published the first scientific study that used the term "global warming". Authorship was wally Broecker, American Scientist recognized for his work on the relationship between oceans and climate changes. at that time the heating was not evident. Co2 levels encreased but for decades the temperatures decreased.
Broecker calculated that the concentrations of gas would rise from 296 to 403 ppm from 1900 to 2010, and linked it to encreased temperature. He saw the heat when the world cooled, since it considered the natural climate viriability that occurs from time to time. His etimates were somewhat higher than acctually hapenned. In some aspects, such as the role of other greenhouse gases and the concentration of heat in the seas, were not yet understood.
the global temperature also reached it record over the last decade. The National Climatic Data Center, NOAA recently released a new study that reinforces the climate crises. The survey takes into account indicators that didn't report that time in the IPCC. It says that six among eleven indicators are intensifying. They are:
Air temperature over land, sea surface, sea level, ocean heat, humidity and temperature in the troposphere.In contrast, the Artic sea ice, Glaciers, snow in northen hemisphere and temperature at the stratosphere are decreasing.
Global warming is undeniable.
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