Ammann, Caspar [et al]. «Solar influence on climate during the past millennium: Results from ransient simulations with the NCAR Climate Simulation Model» (PDF). Proceedings of the National Academy of Sciences of the United States of America, 104, 10, 06-04-2007, pàg. 3.713-3.718. DOI: 10.1073/pnas.0605064103. PMID: 17360418. «However, because of a lack of interactive ozone, the model cannot fully simulate features discussed in (44)." "While the NH temperatures of the high-scaled experiment are often colder than the lower bound from proxy data, the modeled decadal-scale NH surface temperature for the medium-scaled case falls within the uncertainty range of the available temperature reconstructions. The medium-scaled simulation also broadly reproduces the main features seen in the proxy records." "Without anthropogenic forcing, the 20th century warming is small. The simulations with only natural forcing components included yield an early 20th century peak warming of ≈0.2 °C (≈1950 AD), which is reduced to about half by the end of the century because of increased volcanism.»
Xu, Chi [et al]. «Future of the human climate niche». Proceedings of the National Academy of Sciences, 04-05-2020, pàg. 201910114. DOI: 10.1073/pnas.1910114117.
Raymond, Colin; Matthews, Tom; Horton, Radley M. «The emergence of heat and humidity too severe for human tolerance». Science Advances, 6, 19, 08-05-2020, pàg. eaaw1838. DOI: 10.1126/sciadv.aaw1838.
Hegerl, Gabriele C.; et al. «Understanding and Attributing Climate Change» (PDF). Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change p. 690. Intergovernmental Panel on Climate Change, 07-05-2007. Arxivat de l'original el 2018-05-08. [Consulta: 20 maig 2007]. «Recent estimates (Figure 9.9) indicate a relatively small combined effect of natural forcings on the global mean temperature evolution of the seconds half of the twentieth century, with a small net cooling from the combined effects of solar and volcanic forcings»
«Summary for Policymaker» (PDF). Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Intergovernmental Panel on Climate Change, 05-02-2007. [Consulta: 2 febrer 2007].
Ammann, Caspar [et al]. «Solar influence on climate during the past millennium: Results from ransient simulations with the NCAR Climate Simulation Model» (PDF). Proceedings of the National Academy of Sciences of the United States of America, 104, 10, 06-04-2007, pàg. 3.713-3.718. DOI: 10.1073/pnas.0605064103. PMID: 17360418. «However, because of a lack of interactive ozone, the model cannot fully simulate features discussed in (44)." "While the NH temperatures of the high-scaled experiment are often colder than the lower bound from proxy data, the modeled decadal-scale NH surface temperature for the medium-scaled case falls within the uncertainty range of the available temperature reconstructions. The medium-scaled simulation also broadly reproduces the main features seen in the proxy records." "Without anthropogenic forcing, the 20th century warming is small. The simulations with only natural forcing components included yield an early 20th century peak warming of ≈0.2 °C (≈1950 AD), which is reduced to about half by the end of the century because of increased volcanism.»
Ammann, Caspar [et al]. «Solar influence on climate during the past millennium: Results from ransient simulations with the NCAR Climate Simulation Model» (PDF). Proceedings of the National Academy of Sciences of the United States of America, 104, 10, 06-04-2007, pàg. 3.713-3.718. DOI: 10.1073/pnas.0605064103. PMID: 17360418. «However, because of a lack of interactive ozone, the model cannot fully simulate features discussed in (44)." "While the NH temperatures of the high-scaled experiment are often colder than the lower bound from proxy data, the modeled decadal-scale NH surface temperature for the medium-scaled case falls within the uncertainty range of the available temperature reconstructions. The medium-scaled simulation also broadly reproduces the main features seen in the proxy records." "Without anthropogenic forcing, the 20th century warming is small. The simulations with only natural forcing components included yield an early 20th century peak warming of ≈0.2 °C (≈1950 AD), which is reduced to about half by the end of the century because of increased volcanism.»
Hegerl, Gabriele C.; et al. «Understanding and Attributing Climate Change» (PDF). Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change p. 690. Intergovernmental Panel on Climate Change, 07-05-2007. Arxivat de l'original el 2018-05-08. [Consulta: 20 maig 2007]. «Recent estimates (Figure 9.9) indicate a relatively small combined effect of natural forcings on the global mean temperature evolution of the seconds half of the twentieth century, with a small net cooling from the combined effects of solar and volcanic forcings»
