ETC Group has produced a world map of geoengineering that represents the first attempt to document the expanding scope of research and experimentation in the large-scale manipulation of Earth or climate systems. (acima).

 

O artigo Geoengineering and Climate Change Implications for Latin AmericA traz o seguinte, dentre outras coisas importantes:

 

The South American Monsoon System (SAMS) has its core 

in the Brazilian Planalto, which contains the headwaters of 

major rivers flowing into the Amazon, La Plata and São 

Francisco basins. These basins provide most of Brazil’s 

hydroelectric energy production and contain major 

agricultural areas.4 Regions affected by the monsoon also 

contain South America’s most populous cities5 and any 

prolonged periods of increased or decreased precipitation 

in these regions can have significant socioeconomic 

impacts; particularly on agriculture and energy production. 

Because of the accentuated topography near the east cost 

of Brazil, heavy rainfall can result in flooding with damages 

to property and infrastructure as well as loss of lives. A lack 

of rainfall, on the other hand, can lead to droughts which 

can have negative impacts on agriculture and hydroelectric energy production. This makes the region 

particularly susceptible to drastic changes in climate.6 Blasting sulfates into the stratosphere does not 

reduce CO2 concentrations; it merely postpones the impact as long as the spraying continues, but can also 

result in additional climate change.

 

Conclusion: Climate change is an anthropogenic 

phenomenon arising from the unanticipated side effects 

of rapid technological transformations. Without 

immediate action to mitigate and adapt to climate 

change, the impact on the people, the economy and food 

supply of Latin America could prove devastating. Sea 

levels will rise, crop yields will decline, weather patterns 

will be erratic and health will be at risk. In this light, 

geoengineering, specifically – but not exclusively – solar 

radiation management, can seem an inexpensive and 

technologically easy and effective interim quick-fix that 

could postpone change and buy time. But, the Band-Aid 

Figure 5. Showing change (color scale) of precipitation, in mm/day in 

a geoengineering scenario injecting stratospheric sulfate aerosol in the 

Arctic. The figure shows the change during June-Aug. (Figure from 

Robock et al, 2008)

Figure 6. Showing change (color scale) of precipitation, in mm/day in 

a geoengineering scenario injecting stratospheric sulfate aerosol in 

the Tropics. The figure shows the change during June-Aug. (Figure 

from Robock et al, 2008)

Figure 7. Showing change (color scale) of precipitation, in mm/day in a 

geoengineering scenario using stratospheric sulfate aerosol injections in 

the Arctic. The figure shows the change during Dec-Feb. (Figure from 

Robock et al. 2008)

Figure 8. Showing change (color scale) of precipitation, in mm/day in a 

geoengineering scenario using stratospheric sulfate aerosol injections in 

the Tropics. The figure shows the change during Dec-Feb. (Figure from 

Robock et al. 2008)could be worse than the problem. It is, once again, an anthropogenic techno-fix with potentially powerful 

side effects. Computer modeling scenarios all identify very real risks. Ultimately, however, perhaps the 

biggest risk is that developing countries will inevitably have to turn over control of the planetary 

thermostat to the technologically powerful nations and industries that caused climate change in the first 

place. Developing countries will be exposed to changes that – by intent – will be more rapid and extreme 

than is predicted for climate change.

 

vale ler o artigo inteiro.

 

E termos oficiais, até onde pude ver, o Brasil se comprometeu em colaborar com o suposto efeito estufa, através da:

 

Política Nacional sobre Mudança do Clima

 

No ano de 2009 foi instituída a Política Nacional sobre a Mudança do Clima (PNMC), por meio da Lei nº 12.187/2009. 

A Política Nacional sobre Mudança do Clima oficializa o compromisso voluntário do Brasil junto à Convenção-Quadro da ONU sobre Mudança do Clima de redução de emissões de gases de efeito estufa entre 36,1% e 38,9% das emissões projetadas até 2020.

 

Segundo o Decreto nº 7.390/2010, que regulamenta a Política Nacional sobre Mudança do Clima, a linha de base de emissões de gases de efeito estufa para 2020 foi estimada em 3,236 GtCO2-eq. Assim, a redução absoluta correspondente ficou estabelecida entre 1, 168 GtCO2-eq e 1,259 GtCO2-eq, 36,1% e 38,9% de redução de emissões, respectivamente.

A governança da PNMC cabe ao Comitê Interministerial sobre Mudança do Clima (CIM) e seu Grupo Executivo (GEx), instituídos pelo Decreto presidencial n° 6.263/2007. Os instrumentos para sua execução são, entre outros: o Plano Nacional sobre Mudança do Clima, o Fundo Nacional sobre Mudança do Clima e a Comunicação do Brasil à Convenção-Quadro das Nações Unidas sobre Mudança do Clima.

 

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apesar de que o Brasil seja signatário da Convention on Biological Diversity (CBD), da ONU - interessante visitar o site como um todo - e de que a resolução COP 10 Decision X/33 mencione explicitamente o termo 'geoengenharia' e recomende que os governos não utilizem desse recurso como uma estratégia de mudança de clima, ainda não encontrei nenhum posicionamento oficial sobre geoengenharia no país. continuo verificando nos meios oficiais e de comunicação.