June Tax

Whenever the ambient degradation to also represent a significant loss of productive capacity, can occur following resulted the negative ones: Scarcity; High of prices; Fall in the real income; Unemployment; Increase of the poverty; Increase of the inaqualities in the distribution of income and wealth; Increase of the number of conflicts and the violence in general; Loss of the rights of the generations future human beings to usufruct a healthful, similar environment to the one of its ancestor. The impacts could be irreversible. The countries insulares ppmv in particular to the fsseis fuel burning, but also to the change in the use of land (deforestation) e, in lesser degree, to the cement production. This increase provoked a radioactive force of about +1,6 Wm-2. Before this recent increase, the Co2 concentration in last the 1000 years, a period where the global climate was relatively steady, floated around 10 ppmv, being for return of 280 ppmv, (SANDOR, 2006) the tax of annual growth of the atmospheric Co2 concentration was low during the beginning of the decade of 90 (0,6 ppmv/year in 1991/92).

However, the recent data indicate that the tax of annual growth is comparable, currently, to the average of the decade of 80, about 1,5 ppmv/year. Isotpicos data possibly suggest that low the tax of growth was resulted of the fluctuations in the Co2 exchanges between the atmosphere and the oceanic and terrestrial biosfera, because of the climatic and biosfricas variations after the eruption of the Pinatubo Mount in June of 1991. While it is important to understand these fluctuations of short term, the fluctuations with duration of some years are not excellent for the future projections of the concentrations or emissions with the objective esteem changes in the climatic system of longer scales of time. The estimate made for the IPCC (1994) of the rocking of carbon in the decade of 80 remains essentially unchanged.