Search results for "Hannah Bird"

Earth Sciences Mar 7, 2024

Nearly 2 billion people globally at risk from land subsidence

Land subsidence is a geohazard caused by the sudden or gradual settling (years to decades) of the land surface due to the removal of subsurface material. This can be due to a variety of factors, both natural (such as earthquakes, ...

Earth Sciences Mar 4, 2024

Mantle convection linked to seaway closure that transformed Earth's oceanographic circulation patterns

Continental drift is a concept familiar to many, referencing the movement of Earth's continents due to shifting tectonic plates over millions of years, splitting one globe-spanning supercontinent into the configuration we ...

Earth Sciences Feb 26, 2024

Earthquakes impact forest resilience for decades post-event, research suggests

Earthquake effects are often thought of in terms of the human impact, be that fatalities or destruction to homes and infrastructure. However, the environmental toll can also be damaging, and new research, published in Nature ...

Earth Sciences Feb 22, 2024

Hiroshima fallout debris linked to first solar system condensates

The atomic bombing of Hiroshima, Japan, by the United States in August 1945 was not only devastating at the time, resulting in the deaths of hundreds of thousands of people, but it has had long-standing impacts to the present ...

Earth Sciences Feb 21, 2024

Marine microplastics: How water mass dispersal impacts transport trajectories

Marine microplastics (1 μm–5 mm diameter) are an ever-pressing concern, given their longevity in the environment (>100 years) and the effects they have on the organisms inhabiting them, particularly as ocean currents carry ...

Earth Sciences Feb 12, 2024

Volcanism-induced ozone depletion may have contributed to Permian mass extinction, study finds

The concept of deadly mass extinctions wreaking destruction upon Earth's ecosystems millions of years ago is something that has fascinated the public and scientists alike for decades.

Ecology Feb 5, 2024

Mapping Australia's marine estate: Seafloor surveillance for biodiversity management

Global marine biodiversity is continually being threatened by oceanographic changes linked to both global warming and anthropogenic activities that degrade the ambient environment for marine organisms. Australia's oceanographic ...

Earth Sciences Jan 30, 2024

Global warming caused widespread ocean anoxia 93 million years ago, deep-sea sediments research suggests

Marine anoxia is characterized by the oceans being severely depleted in dissolved oxygen, making them toxic and thus having devastating impacts on the organisms inhabiting them. One such event, known as Oceanic Anoxic Event ...

Earth Sciences Jan 29, 2024

Pollen diaries: Polar ice records preserve climate vs. human impact following Little Ice Age

Pollen can help scientists track changes in vegetation through time, as they respond to moderations of the climate, be that glaciation or deglaciation with transitions into and out of ice ages. Furthermore, it can help elucidate ...

Earth Sciences Jan 20, 2024

Research suggests European Alps eroding slower than >10,000 years ago

Deglaciation during the Holocene (last ~17,000 years) has had significant impacts on the surrounding mountainous environments as glaciers retreated and left distinct landforms in their wake, such as debris ridges (moraines) ...

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