Measuring shells and skeletons encased in thousands of limestone samples has revealed that the sheer amount of living stuff in Earth’s oceans changed alongside the diversity of organisms.
ecosystems
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Precipitation Extremes Drive Swings in Lake Tahoe’s UV Exposure
An 18-year study reveals dramatic year-to-year variations in ultraviolet radiation penetration tied to Sierra Nevada precipitation cycles.
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Surface Conditions Affect How Mosses Take to Former Well Pads in Canada’s Boreal Fens
With the help of key moss species, a new approach aims to restore the fens of the Western Boreal Plain.
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As Climate Changes, So Do Gardens Across the United States
Warmer winter temperatures have altered frost patterns and growing seasons across the United States, forcing botanical gardens and arboretums to adapt.
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Artisanal Gold Mining Is Destroying Amazonian Peatlands
A new analysis of archived satellite imagery has revealed that the growing presence of small-scale mining in the Peruvian Amazon is threatening carbon reserves and unique ecosystems.
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Have We Finally Found the Source of the “Sargassum Surge”?
The complexity of modeling the tropical Atlantic makes identifying the source of the ongoing seaweed blooms difficult.
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Newly Discovered Algae May Speed Melting of Antarctic Ice
Purple pigmentation in a diverse array of algae absorbs heat and creates a feedback loop responsible for 2% of total daily melting.
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Los incendios forestales amenazan los suelos volcánicos de los Andes peruanos
Los frágiles ecosistemas de las tierras altas mostraron baja resiliencia a los incendios, lo que los hace más vulnerables a la degradación a largo plazo.
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A Great Whale Conveyor Belt Transports Nutrients Across Oceans
Baleen whales shift huge amounts of nutrients, including nitrogen, from high-latitude feeding waters to tropical breeding areas.
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Could Bubbling Oxygen Revitalize Dying Coastal Seas?
Reoxygenation approaches have shown some success in lakes, but their potential risks must be examined carefully before they’re implemented as solutions to improve the health of coastal waters.