Articles by Hannah Bird
Phys.org / 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 ...
Phys.org / 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.
Phys.org / 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 ...
Phys.org / 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 ...
Phys.org / 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 ...
Phys.org / 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) ...
Phys.org / Permian marine mass extinction linked to volcanism-induced anoxia
Mass extinctions are rapid global decreases in Earth's biodiversity, with five key events identified over the planet's history, arguably the most famous of which occurred ~66 million years ago during the Cretaceous, which ...
Phys.org / Arabia's alluvial fans grow and decay with Earth's orbital cycles
Erosion of Earth's topography entrains sediment in rivers flowing across mountains, canyons and other naturally steep landscapes within the catchment. This silt, sand and gravel is transported variably by suspension in the ...
Phys.org / Marine heat waves: Why the East Sea experienced extreme conditions in 2021
Extreme environmental events are becoming an ever more pressing concern with the continued stresses of climate change, both on land and in the marine realm. While terrestrial heat waves tend to occur over a few days, those ...
Phys.org / Reservoir construction may be reducing carbon storage in ocean sediments
Carbon storage has been a key focus in recent years to draw down natural and anthropogenic sources of carbon dioxide and help the fight against global warming, and particularly focuses on terrestrial forests and soils, as ...
Phys.org / Carbon neutrality likely to increase extreme weather events by 2050, finds study
Climate modeling based upon Earth's current greenhouse gas emissions trajectory predicts a worst-case scenario of 4.3°C warming of the planet by 2100 if sufficient measures are not implemented. While the Paris Climate Agreement ...
Phys.org / Climate change increasing likelihood of extreme snowfall in the French Alps, research suggests
Global warming is often cited as having a negative impact on snow and ice melt in cold regions, yet new research published in The Cryosphere has suggested that extreme snowfall events may be a feature of some locations at ...
Phys.org / Plant health as a new effective monitoring system for volcanic activity
Plants have a symbiotic relationship with their surrounding environment, being a vital indicator of the overall health of the landscape, as well as significant changes within it. One such driver of plant response is gas emissions, ...
Phys.org / Global warming–induced sea level changes could increase earthquake risk
Earthquakes often occur along plate boundaries, when sudden movements of the "stuck" plates release elastic strain energy, sending out seismic waves that result in the ground shaking familiar to many worldwide. More rarely, ...
Phys.org / Seagrass decline poses issues for carbon storage projects
Climate change is an ever-pressing concern, with innovative ways to remove excess carbon from the atmosphere a continued focus of scientists. One such carbon sequestration method turns to an unlikely sink—seagrass—a marine ...
