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Hannah Bird

Hannah Bird

Author

Hannah Bird possesses a PhD in Earth Sciences, focused on oceanography, climatology and palaeontology. She specializes in terrestrial and marine flora and fauna responses to past global warming events, including research on the oldest known amphibian footprints in the UK. She has over 10 years of experience translating complex scientific principles into mainstream media.

Articles by Hannah Bird

Phys.org / Climate-driven changes have already threatened more than half of Central Europe's productive agricultural landscape

Droughts are a serious consequence of climate change, devastating ecosystems, along with the organisms and communities who inhabit them. Understanding the impact of this upon agricultural productivity is vital to ensure sustainable ...

Jan 23, 2025
Phys.org / Azraq Basin fossils reveal mammals shrank during Pleistocene-Holocene climate shift

Earth's climate changed dramatically during the Late Pleistocene and Early Holocene 130,000 to 7,000 years ago, when cold glacial cycles transitioned into the current warmer interglacial. Such a climatic evolution had considerable ...

Jan 23, 2025
Phys.org / Mars's two distinct hemispheres caused by mantle convection not giant impacts, study claims

Mars has northern and southern hemispheres like Earth, but their defining characteristics are markedly different, a phenomenon known as Martian dichotomy. The Southern Highlands are older, higher in elevation and more cratered ...

Jan 17, 2025
Phys.org / Mars's rare disappearing solar wind event explained

Mars's atmosphere and climate are impacted by interactions with solar wind, a stream of plasma comprised of protons and electrons that flows from the sun's outermost atmosphere (corona), traveling at speeds of 400–1,000 kilometers ...

Jan 17, 2025
Phys.org / Rockfall frequency from French mountains has doubled since Little Ice Age

The Little Ice Age was a period of significant cooling from the early 14th to mid-19th centuries, which saw mean temperatures across the northern hemisphere drop by up to 2°C and the advancement of glaciers.

Jan 16, 2025
Phys.org / Melting Antarctic ice sheets may be causing larger volcanic eruptions

Melting ice sheets are often considered synonymous with climate change in the media, with evocative images of lone polar bears floating on ever-shrinking rafts of ice. While impacts such as sea level rise and salinity changes ...

Jan 12, 2025
Phys.org / Patagonian droughts linked to harmful algal blooms

Patagonia's fjords are home to spectacular biodiversity, with many endemic and endangered aquatic species. They are also an environment suitable for thriving fisheries that support food security and local economies, being ...

Jan 7, 2025
Phys.org / North Carolina's coastal tourism could decline due to salty tap water

Sea level rise is an ever-pressing concern as climate change melts ice sheets. Coastal flooding is an unfortunate consequence, which can have a devastating impact on the local environment, including an unexpected toll on ...

Jan 2, 2025
Phys.org / Arctic Siberia summers were up to 10°C warmer than today during the Last Interglacial, study finds

Interglacials are, as the name suggests, warm periods between planetary glaciations when the expanse of ice on Earth shrinks. Currently, we are in an 11,000 year-long interglacial period known as the Holocene. Prior to this, ...

Dec 19, 2024
Phys.org / Primitive meteorites formed in less turbulent solar nebula, researchers suggest

Chondritic meteorites (chondrites) are some of the oldest rocks in our solar system, forming 4.5 billion years ago. Therefore, their primitive composition means that they offer a window into the origins of planet formation, ...

Dec 12, 2024
Phys.org / Longer Snowball Earth deglaciation could have driven multiple phases of sea level rise and fall

Snowball Earth defines periods of our planet's history when ice spanned the globe, even reaching the equator. The planetary-scale freeze is thought to have been driven by ice sheet expansion triggering a climatic tipping ...

Dec 10, 2024
Phys.org / Climate patterns from cave mineral deposits linked to Chinese dynasty collapses

China's dynastic history spans 13 periods of rule from 2070 BC until the last emperor abdicated in 1912. While factors leading to the transitions between dynasties are a complex mixture of environmental, social and economic ...

Dec 7, 2024
Phys.org / Climate warming is reducing rice quality in East Asia, research reveals

Rice is a food staple for billions of people worldwide, with demand doubling over the past 50 years, and is predominantly grown in Asia before being exported globally. This crop is sensitive to weather conditions and, as ...

Dec 3, 2024
Phys.org / Ryugu asteroid samples indicate damage from microscopic meteoroid bombardment

Asteroids are remnants of the formation of our solar system, and while many can be found within the asteroid belt between the orbits of Mars and Jupiter, some cannot. One such object is asteroid (162173) Ryugu, a 1 km-wide ...

Nov 29, 2024
Phys.org / Himalayas formation may have destroyed at least 30% of continental crust in collision zone

Earth's continents are slowly moving across the planet's surface due to plate tectonics, culminating in regions of crustal expansion and collision. In the latter case, high temperatures and pressures lead to the reworking ...

Nov 28, 2024