Earth's atmosphere contains fine particles suspended in the air, known as aerosols, occurring from natural sources, such as dust from deserts, volcanic ash, smoke from forest fires, sea salt from ocean spray and organic compounds ...
Earth's oceans are a complex system, and their interconnected nature has global implications. Around Antarctica, cold and dense waters form in the depths of the Southern Ocean. This is known as Antarctic Bottom Water (AABW). ...
Reduced predictability of seasonal rainfall might have played a significant role in the disintegration of Classic Maya societies about 1,100 years ago. "Decline in seasonal predictability potentially destabilized Classic ...
Archaeology
Apr 7, 2023
0
145
Scientists from Denmark and China have estimated germline mutation rates across vertebrates by sequencing and comparing genetic samples from 151 mother, father, and offspring trios from 68 species of mammals, fishes, birds ...
More than 20 years ago, Dr. Heiko Prümers from the German Archaeological Institute and Prof. Dr. Carla Jaimes Betancourt from the University of Bonn, at that time a student in La Paz, began archaeological excavations on ...
Archaeology
May 25, 2022
0
147
In the Southern Hemisphere, the ice cover around Antarctica gradually expands from March to October each year. During this time the total ice area increases by 6 times to become larger than Russia. The sea ice then retreats ...
Earth Sciences
Mar 28, 2022
4
224
Removal of an offender's hand, tongue or ear: punishments described in Babylon's Hammurabi Code, depended on the nature of the crime. Published in 1771 B.C., the code set the first formal standards for business interactions. ...
Plants & Animals
Aug 2, 2021
1
633
A vast seabird colony on Ascension Island creates a "halo" in which fewer fish live, new research shows.
Ecology
Jul 5, 2021
0
10
Humans have made a remarkable impact on the planet, from clearing forests for agriculture and urbanization to altering the chemistry of the atmosphere with fossil fuels. Now, a new study in the journal Nature reveals for ...
Earth Sciences
Mar 3, 2021
0
672
Often, when populations and economies boom, so does air pollution—a product of increased fossil-fuel consumption by vehicles, industry and households. This has been true across much of Africa, where air pollution recently ...
Earth Sciences
Feb 8, 2021
0
96
