Scientists have been unable to determine whether the dwarf planet’s organics were produced by its own chemical processes or delivered by asteroids. New evidence implicates asteroids.
Research Spotlights
Research spotlights are plain-language summaries of recent articles published in AGU’s suite of 24 journals.
Posted inResearch Spotlights
太阳辐射干预策略如何影响农业？
地球工程方法，如平流层气溶胶注入，有望抑制气候变暖，但存在许多潜在风险和担忧，其中它们对农业的影响在很大程度上仍未得到探索。
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Ancient Climate Reconstruction Links Past and Future
A new map of climate conditions during the Pliocene epoch—the last time Earth’s carbon dioxide concentrations hit 400 parts per million—could offer clues about possible climatic changes in store for the 21st century.
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Tracing Metals from Earth to Water to Life in the Yellow River
The mix of metals in China’s Yellow River stays relatively similar as it moves from the upper continental crust to biological life.
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Thawing Permafrost Helped Trigger Ancient Icelandic Landslides
New research shows that warming beginning about 13,000 years ago contributed to a proliferation of landslides in Iceland.
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Deep Beneath California’s Sierra Nevada, Earth’s Lithosphere May Be Peeling Away
Evidence for lithospheric foundering, or the process of denser material sinking into the mantle, is emerging.
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How Could Solar Climate Intervention Strategies Affect Agriculture?
Geoengineering approaches such as stratospheric aerosol injection hold the promise of limiting warming, but among the many potential risks and concerns, their impacts on agriculture remain largely unexplored.
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Modeling the Long and Short of Subduction Zones
A new subduction model could reveal important insights about megathrust earthquakes.
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Warm Seawater Encroaches on Major Antarctic Ice Shelf
In unprecedented detail, new research illuminates the seasonal flow of warm water toward the Filchner-Ronne Ice Shelf.
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Antarctic Ice Melt May Fuel Eruptions of Hidden Volcanoes
More than 100 volcanoes lurk beneath the surface in Antarctica. Ice sheet melt could set them off.