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Assessment of solar energy potential for Bahir Dar city, Ethiopia.

Sci Rep

October 2024

Faculty of Mechanical and Industrial Engineering, Bahir Dar Institute of Technology, Bahir Dar University, Bahir Dar, P.O. Box 26, Ethiopia.

The world's energy consumption is being replaced by renewable energies in large part because of the depletion of fossil fuels and the acceleration of environmental change. This study reports the amount of inward solar radiation in the date range from January 2018 to December 2022 in the Gregorian Calendar for certain areas in Bahir Dar, Ethiopia: 37°E and 11.6°N.

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A Late Pleistocene coastal ecosystem in French Guiana was hyperdiverse relative to today.

Proc Natl Acad Sci U S A

April 2024

Equipe Dynamique de la Lithosphère, Géosciences Montpellier, Univ Montpellier, CNRS, Montpellier 34095, France.

Warmer temperatures and higher sea level than today characterized the Last Interglacial interval [Pleistocene, 128 to 116 thousand years ago (ka)]. This period is a remarkable deep-time analog for temperature and sea-level conditions as projected for 2100 AD, yet there has been no evidence of fossil assemblages in the equatorial Atlantic. Here, we report foraminifer, metazoan (mollusks, bony fish, bryozoans, decapods, and sharks among others), and plant communities of coastal tropical marine and mangrove affinities, dating precisely from a ca.

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Article Synopsis
  • The rise of angiosperm-dominated tropical rainforests occurred shortly after the Cretaceous-Paleogene transition, prompting examination of rare Paleocene fossil wood to understand anatomical changes.
  • Researchers analyzed 11 Paleocene fossil wood specimens from Myanmar, describing their anatomical features and identifying affinities with present-day plant families, including a new species and genus called Compitoxylon paleocenicum.
  • The findings indicate long-lasting plant groups in South Asia, showcasing both modern and primitive wood features, suggesting early diversity and stability of tropical flora during the angiosperm evolution.
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The geographic ranges of marine organisms, including planktonic foraminifera, diatoms, dinoflagellates, copepods and fish, are shifting polewards owing to anthropogenic climate change. However, the extent to which species will move and whether these poleward range shifts represent precursor signals that lead to extinction is unclear. Understanding the development of marine biodiversity patterns over geological time and the factors that influence them are key to contextualizing these current trends.

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