Global cooling - Wikipedia
Global cooling was a conjecture, especially during the 1970s, of imminent cooling of the Earth culminating in a period of extensive glaciation, due to the cooling effects of aerosols or orbital forcing.
By 2030, Earth’s Climate Could Look Like It Did 3 Million Years Ago - PBS
2018年12月12日 · In a study published Monday in the Proceedings of the National Academy of Sciences (PNAS), scientists report that a planet-wide cooling trend that began nearly 50 million years ago is reversing...
The Upper Atmosphere Is Cooling, Prompting New Climate …
2023年5月18日 · A new study reaffirming that global climate change is human-made also found the upper atmosphere is cooling dramatically because of rising CO2 levels. Scientists are worried about the effect this cooling could have on orbiting satellites, the …
Climate change - Global Cooling, Ice Age, Human Impact
2 天之前 · Climate change - Global Cooling, Ice Age, Human Impact: The Earth system has undergone a general cooling trend for the past 50 million years, culminating in the development of permanent ice sheets in the Northern Hemisphere about 2.75 million years ago.
How the "Global Cooling" Story Came to Be - Scientific American
2014年1月10日 · The story observed – accurately – that there had been a gradual decrease in global average temperatures from about 1940, now believed to be a consequence of soot and aerosols that offered a ...
Climate myths: They predicted global cooling in the 1970s
2007年5月16日 · Update: A survey of the scientific literature has found that between 1965 and 1979, 44 scientific papers predicted warming, 20 were neutral and just 7 predicted cooling. So while predictions of...
NASA Satellites See Upper Atmosphere Cooling and Contracting …
2021年6月30日 · Combined data from three NASA satellites have produced a long-term record that reveals the mesosphere, the layer of the atmosphere 30 to 50 miles above the surface, is cooling and contracting. Scientists have long predicted this effect of human-driven climate change, but it has been difficult to observe the trends over time.
Our Fragile Earth: How Close Are We to Climate Catastrophe?
2023年9月26日 · In his new book, Our Fragile Moment: How Lessons from Earth’s Past Can Help Us Survive the Climate Crisis, renowned climate scientist Michael Mann describes the world climate change is creating...
Global cooling | Earth science | Britannica
intervals of global warming and cooling. Earth has experienced both extreme warmth and extreme cold during this period. These changes have been driven by tectonic forces, which have altered the positions and elevations of the continents as well as ocean passages and bathymetry.
Hasn't Earth warmed and cooled naturally throughout history?
2020年10月29日 · Earth has experienced cold periods (informally referred to as “ice ages,” or "glacials") and warm periods (“interglacials”) on roughly 100,000-year cycles for at least the last 1 million years. The last of these ice age glaciations peaked* around 20,000 years ago.