by University of Oulu, March 18, 2020
Changes in space climate driven by long-term changes in solar activity have a significant impact on Earth’s atmosphere and climate. Understanding the complex system requires cooperation between space physics and climate science.
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On the right, a picture of the Sun taken at the wavelength of visible light, i.e. like a regular camera at very short shutter speed, visible sunspot groups. The time series in the image illustrate a few long series of data used in space air research.
On green: approximately 40 years of direct satellite measurements, a combination of energetic electrons coming into the Earth’s atmosphere.
In red: from geomagnetic measurements reconstructed estimate of the speed of the solar wind in the last hundred years.
With purple: the longest unified time series for geomagnetic activity (the so-called AA index), starting from 1868 and continuing to the present day.
In blue: 400 year series of sunspots. This set of data is the longest indicator of solar activity based on direct measurements.
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by P. Homewood, May 27, 2020 in NotaLotofPeopleKnowThat
YouTube has taken down the controversial Michael Moore-produced documentary, Planet of the Humans in response to a copyright infringement claim by a British environmental photographer.
The movie, which has been condemned as inaccurate and misleading by climate scientists and activists, allegedly includes a clip used without the permission of the owner Toby Smith, who does not approve of the context in which his material is being used.
In response, the filmmakers denied violating fair usage rules and accused their critics of politically motivated censorship.
Smith filed the complaint to YouTube on 23 May after discovering Planet of the Humans used several seconds of footage from his Rare Earthenware project detailing the journey of rare earth minerals from Inner Mongolia.
Smith, who has previously worked on energy and environmental issues, said he did not want his work associated with something he disagreed with. “I went directly to YouTube rather than approaching the filmmakers because I wasn’t interested in negotiation. I don’t support the documentary, I don’t agree with its message and I don’t like the misleading use of facts in its narrative.”
Planet of the Humans director Jeff Gibbs said he was working with YouTube to resolve the issue and have the film back up as soon as possible.
https://www.msn.com/en-gb/entertainment/movies/michael-moore-film-planet-of-the-humans-removed-from-youtube/ar-BB14zOSN
La géologie, une science plus que passionnante … et diverse
