约70%的全球平均地面气温变化来自温室气体的贡献
《自然》旗下期刊《npj-气候与大气科学》发表题为《对全球/区域气候演变的自然变率和人为强迫的新见解》的文章显示,1880—2017年全球平均地面气温变化的驱动因素约70%来自温室气体。
《自然》(20230803出版)一周论文导读
Abstract:Granites are nearly absent in the Solar System outside of Earth. Achieving granitic compositions in magmatic systems requires multi-stage melting and fractionation, which also increases the concentration of radiogenic elements. Abundant water and plate tectonics facilitate these processes on Earth, aiding in remelting. Although these drivers are absent on the Moon, small granite samples have been found, but details of their origin and the scale of systems they represent are unknown. Here we report microwave-wavelength measurements of an anomalously hot geothermal source that is best explained by the presence of an approximately 50-kilometre-diameter granitic system below the thorium-rich farside feature known as Compton–Belkovich. Passive microwave radiometry is sensitive to the integrated thermal gradient to several wavelengths depth. The 3–37-gigahertz antenna temperatures of the Chang’e-1 and Chang’e-2 microwave instruments allow us to measure a peak heat flux of about 180 milliwatts per square metre, which is about 20 times higher than that of the average lunar highlands3,4. The surprising magnitude and geographic extent of this feature imply an Earth-like, evolved granitic system larger than believed possible on the Moon, especially outside of the Procellarum region5. Furthermore, these methods are generalizable: similar uses of passive radiometric data could vastly expand our knowledge of geothermal processes on the Moon and other planetary bodies.
五千万年未见!科学家警告:地球气候将进入“温室”,大周期加速
参考文献:Forest carbon sink neutralized by pervasive growth-lifespan trade-offs, Nature Communications,2020, Vol. 11, Article number: 4241.
英美研究发现人类活动导致南极冰盖融化的证据
图片来自网络2019 年 8 月 12 日,《自然·地球科学》(Nature Geoscience)发表题为《南极西部冰川损失受内部气候变率和人为强迫的影响》(West Antarctic Ice Loss Influenced by Internal Climate Varia
自然因素导致地球能量不平衡的概率低于1%
2021年7月28日,《自然·通讯》(Nature communications)杂志刊发文章《在地球能量不平衡中,人为强迫和响应呈正趋势》(Anthropogenic forcing and response yield observed positive trend in E
地球能维持生命是因为这9条边界,但现在7条已经被突破了
9月21日,德国波茨坦气候影响研究所发布了《2026年行星健康检查》。这份由60多位科学家参与撰写的报告,再次更新了对地球整体状态的评估。