Author: Bob Yirka

Schematic view of the tipping elements of the Earth climate system, their connectivity and teleconnections. The numbered symbols show the potential tipping elements in the Earth system. The dashed yellow lines show the possible connections between these tipping elements and the solid red lines show teleconnection uncovered in this article. The arrows show the direction of the influence. Credit: Nature Climate Change (2023). DOI: 10.1038/s41558-022-01558-4 An international team of climate scientists has found evidence suggesting that deforestation in the Amazon rainforest is influencing weather in Tibet, more than 15,000 kilometers away. In their paper published in the journal Nature Climate…

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An international team of researchers has found that an acceleration in movement of a deep landslide beneath the city of Bukavu, in the Democratic Republic of the Congo, is due to city sprawl, not natural forces. In their study, published in the journal Nature Geoscience, the group analyzed satellite imagery and aerial photographs of the city taken over many years to learn more about the movement of the land beneath the city. Thin landslides that destroy buildings and carry people to their doom regularly make the headlines. Such landslides typically happen suddenly and involve quickly moving ground, generally after a…

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Future summer p′CO2 is dominated by warming, particularly in shelf seas. a–i, Arctic maps of the summer anomalies of total pCO2 (a–c), the thermal component (d–f) and the non-thermal component (g–i) are shown for the CMIP5 mean (RCP8.5) as decadal averages for 2006–2015 (modern; a,d,g), 2091–2100 (future; b,e,h) and their difference (c,f,i). The summer anomaly is the average of the monthly anomalies over the three summer months (June, August, September). The components are from the Taylor expansion. The non-thermal component can be further decomposed into its various contributions, as discussed later, showing for instance that its reduction on the shelves…

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Selected experimental data (a). Photographs of the deuterium sample under white light illumination above 400 GPa at 80 K. (b) T2g phonon Raman spectra of the diamond anvil tip, with a step shape pointing the wave number used to calculate pressure (as red dot) associated with the diamond tip–D2 interface. (c) Infrared transmission spectra. Intrinsic absorption features due to deuterium are indicated by the red star pointing to the vibron peak and the red triangle pointing to the zeroing at high wave numbers due to the band gap decrease. Credit: Physical Review Letters (2022). DOI: 10.1103/PhysRevLett.129.035501 A trio of researchers…

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Modeling approach used in this study. First, we explore different scenarios of future aviation, taking into consideration future technologies and demand changes following different socioeconomic pathways. These scenarios result in different pathways of future aviation emissions and indirect effects (Supplementary Methods 1.1). Then, we use the sensitivity parameters, σi, to calculate the effective radiative forcing of the different aviation species and its uncertainty. We then apply different definitions of climate neutrality (Gold, Silver and Bronze) and calculate the needed carbon-removal rates, using the GWP* metric to establish a relationship between aviation non-CO2 forcing andCO2 removal. Finally, we input CO2 emissions…

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