New research findings consistent with theory of impact event 12,900 years ago
(Phys.org)—New research findings published in the Proceedings of the National Academy of Sciences (PNAS) are consistent with a controversial theory that an extraterrestrial body – such as a comet – i ...
New study charts the fate of chemicals affecting health and the environment
Looking forward in science often requires looking back, evaluating trends to extrapolate future outcomes. A classic case is Moore's Law, which predicts that the density of components on an integrated circuit will double every ...
Prehistoric humans not wiped out by comet, say researchers
(Phys.org)—Comet explosions did not end the prehistoric human culture, known as Clovis, in North America 13,000 years ago, according to research published in the journal Geophysical Monograph Series.
Biofuels may damage health, researchers find
Concern is growing about finding alternatives to fossil fuels, but the negative impact of one of these—biofuels—may be greater than we first thought, say scientists.
Hearing the Russian meteor, in America: Sound arrived in 10 hours, lasted 10 more
(Phys.org) —How powerful was February's meteor that crashed into Russia? Strong enough that its explosive entry into our atmosphere was detected almost 6,000 miles away in Lilburn, Ga., by infrasound sensors – a full ...
Antarctic waters changing due to climate: study
The densest waters of Antarctica have reduced dramatically over recent decades, in part due to man-made impacts on the climate, Australian scientists said Friday.
Ecosystems change long before species are lost
(Phys.org) —Communities in nature are likely to be a lot more sensitive to change than previously thought, according to a new study at Rice University.
UN advances Internet privacy resolution (Update)
The U.N. General Assembly's human rights committee on Tuesday unanimously adopted a resolution sponsored by Brazil and Germany to protect the right to privacy against unlawful surveillance, following months ...
Human impacts of rising oceans will extend well beyond coasts
Identifying the human impact of rising sea levels is far more complex than just looking at coastal cities on a map.
Man and the last great wilderness: Human impact on the deep sea
The oceans cover 71% of our planet, with over half with a depth greater than 3000 m. Although our knowledge is still very limited, we know that the deep ocean contains a diversity of habitats and ecosystems, ...
Spiders suffer from human impact
Researchers from the King Juan Carlos University (URJC) have carried out a research study published in Biological Conservation, which looked at whether spiders were more tolerant of human impact than other ...
Devastating human impact on the Amazon rainforest revealed
The human impact on the Amazon rainforest has been grossly underestimated according to an international team of researchers from Brazil and the UK, led by Lancaster University.
Image: Deforestation in the state of Rondônia in western Brazil, from orbit
This 300 m-resolution image reveals the human impact on the world's largest tropical rainforest. The brownish colours indicate deforested areas – note the distinctive 'fishbone' pattern as main roads are ...
Carbon dioxide—our salvation from a future ice age?
Mankind's emissions of fossil carbon and the resulting increase in temperature could prove to be our salvation from the next ice age. According to new research from the University of Gothenburg, Sweden, the current increase ...