Aquecimento Global

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Muito interessante!

Especialmente tendo em conta quem publica! :D

"This is about 100 times less than present day human CO2 emissions by burning fossil fuels, but it is similar to how much CO2 is released by volcanoes around the world, meaning it is a key player in Earth's natural carbon cycle."

Relacionado -> https://www.climate.gov/news-featur...-carbon-dioxide-volcanoes-or-human-activities
 
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Que desilusão... :disgust:
Percebo, mas pensa assim: a humanidade precisa de petróleo e de gás. E não sejamos hipócritas, qualquer um de nós necessita dessas matérias primas para realizar atividades básicas.
Eu prefiro que essas matérias primas venham de países com consciência ambiental e de segurança do que virem de lugares onde esses fatores não têm tanta importância.
 

Mas elas tinham alguma relevância?

Diverte-te. O metano está incluído -> https://www.metoffice.gov.uk/binari...cts/paper2_recent_pause_in_global_warming.pdf & https://blog.metoffice.gov.uk/2012/01/29/met-office-in-the-media-29-january-2012/

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What can we conclude from all this?
First, periods of slowing down and pauses in surface warming are not unusual in the instrumental temperature record.
Second, climate model simulations suggest that we can expect such a period of a decade or more to occur at least twice per century, due to internal variability alone.
Third, recent research suggests that ocean heat re-arrangements, with a contribution from changes in top of the atmosphere radiation, could be important for explaining the recent pause in global surface warming.

We note, however, the need for better continuous long-term records of the net radiation at the top of the atmosphere in general, and of solar radiation in particular, to understand decadal changes in global climate. We also need to maintain and extend to deeper levels (below 2000m) the monitoring of the heat content and thermal structure of the oceans by in situ measurements, building on the tremendous advances made in recent years with the introduction of Argo floats, and the constraints using the sea level measurements from satellites and tide gauges.
Finally we note the importance of understanding the dynamics of the global oceans, and how this acts to rearrange heat within the system. Of particular relevance here is a greater understanding of decadal variability in the Pacific Ocean. The scientific questions posed by the current pause in global surface warming require us to understand in much greater detail the flows of energy into, out of, and around the Earth system.
Current observations are not detailed enough or of long enough duration to provide definitive answers on the causes of the recent pause, and therefore do not enable us to close the Earth’s energy budget. These are major scientific challenges that the research community is actively pursuing, drawing on exploration and experimentation using a combination of theory, models and observations.

Unforced Millennial Oscillations of the Coupled Climate-Carbon System
 
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