All articles tagged with #paleoclimate
Recent research suggests that passing stars, or stellar flybys, did not influence Earth's climate over the past 56 million years, including during the Paleocene-Eocene Thermal Maximum, when significant global warming occurred. Advanced models incorporating comprehensive Solar System dynamics show no link between stellar flybys and climate shifts, challenging earlier hypotheses that such events triggered major climatic changes.
Recent research suggests that stellar flybys have likely not influenced Earth's past climate changes over the last 56 million years, challenging earlier hypotheses. Using comprehensive solar system models, scientists found no significant impact of passing stars on Earth's orbital stability or climate events like the Paleocene-Eocene Thermal Maximum, emphasizing the importance of detailed modeling in understanding celestial influences on our planet.
A large find of dinosaur tracks and fossilized plants and tree stumps in far northwestern Alaska provides new information about the climate and movement of animals near the time when they began traveling between the Asian and North American continents roughly 100 million years ago. The findings by an international team of scientists led by paleontologist Anthony Fiorillo were published in the journal Geosciences, shedding light on the lush, wet environment of the mid-Cretaceous period and providing insights into the high-latitude ecosystem on a warmer Earth.
Earth's orbit around the Sun is influenced by passing stars, affecting its climate and complicating paleoclimate studies. The gravitational tugs of stars like HD 7977 can significantly alter Earth's orbit, introducing uncertainties in paleoclimate conclusions. This challenges previous models linking Earth's eccentric orbit to events like the Paleocene-Eocene Thermal Maximum, suggesting that passing stars may have played a more significant role in shaping the planet's climate than previously thought.
A study analyzing climatic conditions in southern Italy from 200 B.C.E. to 600 C.E. suggests that even mild climate changes can impact human health, with pandemic outbreaks in ancient Rome associated with cold snaps. The research reveals correlations between phases of climate change and episodes of acute health crises, emphasizing the potential impact of climate swings on human bodies, pathogens, and responses to pathogens. The study sheds light on the association between Rome's expansion and stable weather, the gradual decline of this pattern, and fluctuation in weather through the later Roman imperial period, culminating in the Late Antique Little Ice Age.