All articles tagged with #carbon dioxide
Scientists extracted tiny air inclusions from 1.4‑billion‑year‑old salt crystals to directly measure Earth’s ancient atmosphere. The CO₂ levels were far lower than prior estimates, challenging the idea of a CO₂‑rich early atmosphere and suggesting a cooler, methane‑influenced climate that persisted under a faint Sun, with implications for the rise of life and hints for exoplanet habitability.
Research shows that champagne's taste can be affected by storage time, altitude, and environment, with older bottles losing carbonation and altitude affecting flavor perception; drinking champagne soon after purchase is recommended for optimal taste.
A study published in Geology reveals that at least 8.2% carbon dioxide is essential for kimberlite magma to rise from the Earth's mantle and carry diamonds to the surface, improving understanding of diamond formation and exploration strategies.
Climate scientists warn that the Southern Ocean may release a 'burp' of stored heat after humans reduce greenhouse gas emissions, potentially reigniting global warming for over a century, especially impacting the Southern Hemisphere and vulnerable countries in the global south.
A recent study shows that the largest trees in the Amazon are growing taller and multiplying, likely due to increased atmospheric CO2, indicating resilience amid climate change. However, deforestation, fires, and droughts remain significant threats, and the forest's ability to offset global emissions is limited. Protecting intact forests is crucial to maintaining their role as a carbon sink and preventing ecological collapse.
Research suggests that plate tectonics and balanced atmospheric CO2 are crucial for long-term habitability and the emergence of technological civilizations, making such planets extremely rare in the galaxy. The study estimates that for multiple civilizations to coexist, they would need to last tens of millions of years, and the closest ETI could be about 33,000 light-years away, highlighting the challenges in detecting extraterrestrial intelligence.
Earth's climate has experienced a vast range of temperatures and conditions over the past half-billion years, driven primarily by atmospheric CO2 levels, with periods of extreme heat and cold that have shaped the evolution and survival of animal life. Modern climate change, caused by rapid CO2 emissions, risks pushing the planet beyond its historical bounds, threatening the biosphere.
Interstellar comet 3I/ATLAS, the third confirmed object from outside our Solar System, was discovered in 2025 and exhibited unusual features such as emitting its own light and having a high carbon dioxide ice ratio, providing valuable insights into other solar systems and their formation processes.
An astrophysicist explains that the interstellar object 3I/Atlas, initially thought to be alien, is a comet with unique properties such as emitting its own light and having a high carbon dioxide ice ratio, providing insights into other solar systems and their formation, with future observations expected to reveal more about its origins and composition.
The James Webb Space Telescope discovered a planet-forming disk around a star in NGC 6357 that is unusually rich in carbon dioxide and scarce in water, challenging existing models of planetary formation and prompting further investigation into the environmental conditions of star systems.
NASA's SPHEREx telescope has revealed that the interstellar comet 3I/ATLAS is wrapped in carbon dioxide fog and water ice, indicating it was well-processed before ejection from its parent system, likely originating from far away in the Milky Way's thick disk. This discovery provides insights into the composition of interstellar objects and demonstrates SPHEREx's advanced capabilities in sky mapping and chemical analysis.
Multiple powerful telescopes including Hubble, TESS, JWST, and SPHEREx have observed interstellar comet 3I/ATLAS, revealing it to be unusually active at a greater distance from the Sun than typical comets and possessing a high proportion of carbon dioxide in its coma, suggesting unique formation conditions or composition. The comet's trajectory and activity provide valuable insights, with further observations expected after perihelion and as it leaves the Solar System.
The James Webb Space Telescope discovered that the coma of interstellar comet 3I/ATLAS is predominantly composed of carbon dioxide, with an unusually high CO2 to water ratio of 8:1, providing new insights into its composition and origin.
Using the James Webb Space Telescope, astronomers discovered a protoplanetary disk around the infant star XUE 10 with an unusual chemical composition, notably high in carbon dioxide and low in water, challenging current models of planet formation and suggesting intense ultraviolet radiation influences its chemistry.
A study shows that thawing permafrost after the last ice age significantly contributed to rising atmospheric CO2 levels, potentially accounting for nearly half of the increase, with natural processes being disrupted by human activities over the past 250 years.