US: The Carbon dioxide (CO2) levels peaked more than 50 per cent higher than pre-industrial levels in May, comparable to levels seen about 4 million years ago, according to scientists. 美国:科学家表示,5月份,二氧化碳(CO2)浓度达到峰值,比工业化前水平高出50%以上,与大约400万年前的水平相当。 Th...
Antarctic CO2 Levels Highest in 4 Million Years: Is That a Problem?Antarctica recently witnessed an event that last took place fourmillion years ago: Carbon...Thomson, Jason
Our results are generally consistent with recent pCO2 estimates based on boron isotope-pH data and stomatal index records, and suggest that CO2 levels were highest during a period of global warmth associated with the Middle Miocene Climatic Optimum (17–14 million years ago, Ma), followed by a...
Over the last 3 million years (Ma), the Earth has cooled substantially and transitioned from a single-pole glaciation to a stage with major glaciations on both poles. In the past 1 Ma, the period of glacial cycles switched from ~41 thousand years (ky) to ~100 ky (mid-Pleistocene ...
The last time CO2levels were as high as today, ocean waters drowned the lands where big cities like Houston, Miami, and New York City now exist. It’s a time called the Pliocene (上新世) or mid-Pliocene, some 3 million years ago, when sea levels were around 30 feet higher (but poss...
Average annual atmospheric levels of carbon dioxide (CO₂) reached a record high of 421.08 parts per million (ppm) in 2023. Monthly atmospheric CO₂ concentrations peaked that year in May, at 424 ppm. Human activities have caused CO₂ concentrations to soar Annual CO₂ concentrations con...
abut none of them four felt bored 正在翻译,请等待...[translate] awhich is faster,cold or heat 哪个是更加快速的,寒冷或热[translate] amisse misse[translate] alevels of gas flaring in million tonnes of CO2 equivalent 飘动在百万吨的气体的水平二氧化碳等值中[translate]...
J. et al. Sea-level and deep-sea-temperature variability over the past 5.3 million years. Nature 508, 477–482 (2014). Article Google Scholar Mudelsee, M. Ramp function regression: a tool for quantifying climate transitions. Computers Geosci. 26, 293–307 (2000). Article Google Scholar ...
Clearly a not especially large size thermoelectric coal plant can produce something like 1 million of metric tonnes (1Mt) of CO2 per year or about 500.106 Nm3/y. Such huge capacities can only be attended by large pipeline systems operating with dense compressed fluid (liquid or dense...
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