Wow, the authors and the reviewers are quite well informed! "... *about 7.11 ppm of CO2 increased in 2022 due to coal, natural, and petroleum consumption for electricity production in the United States*".
Le jeu. 6 mars 2025 à 12:27, Geoengineering News < [email protected]> a écrit : > https://scijournals.onlinelibrary.wiley.com/doi/full/10.1002/ese3.2083 > > *Authors* > Kyung Bae Jang, Tae Ho Woo > > First published: *27 February 2025* > > https://doi.org/10.1002/ese3.2083 > > *ABSTRACT* > Solar radiation modification (SRM) through space solar shielding is a > proposed strategy to mitigate global warming. This approach involves > reflecting sunlight back into space *while allowing Earth's infrared > radiation to escape*, thereby controlling climate change. The > effectiveness of space solar shielding is evaluated using a complex > algorithm that considers various parameters of the shielding satellite, > such as its size, orbit, and deployment mechanism. The thickness of the > shield should be similar to the solar wavelength, around 400-600 nm, to > deflect sunlight with an expected mass density lower than 1.5 g/m2. The > primary objective is to reduce the greenhouse effect by mitigating the > increase in atmospheric carbon dioxide (CO2) levels. In 2022, CO2 levels in > the United States surpassed the pre-industrial level of 278 ppm, increasing > by approximately 7.11 ppm due to the consumption of coal, natural gas, and > petroleum for electricity generation. This point reflects the relatively > recovered climate environment at the end of the pandemic. Therefore, > long-wavelength solar radiation energy going out from the Earth is absorbed > and increases the temperature of the Earth's atmosphere, so we want to > reduce the solar energy coming into the Earth. The performance of space > solar shielding is analyzed using a system dynamics (SD) model, which > incorporates feedback loops and non-linear relationships between various > variables. The results indicate that while the effectiveness of CO2 > reduction may diminish over time, the overall climate mitigation benefits > could be significant. However, the large scale of space solar shielding > raises concerns about potential side effects. Further research is necessary > to assess the environmental and socio-economic implications of this > geoengineering approach. > > > > *Source: Wiley Online Library* > > -- > You received this message because you are subscribed to the Google Groups > "geoengineering" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/geoengineering/CAHJsh9_tUNCzsME9WkAXuDJbBZjzmcE6sE4ELdTUnJzFdNEMsg%40mail.gmail.com > <https://groups.google.com/d/msgid/geoengineering/CAHJsh9_tUNCzsME9WkAXuDJbBZjzmcE6sE4ELdTUnJzFdNEMsg%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/geoengineering/CAHodn9_uE_6TdYAyL7UuSJptAQfccuUaUnpuZo8ywjoeJU%3DSRg%40mail.gmail.com.
