Category archives: Geosciences

The bigger the temperature change, the larger the extinction event

The bigger the temperature change, the larger the extinction event

Geosciences

By César Tomé

New research has unearthed evidence that points to a strong relationship between the magnitude of mass extinctions and global temperature changes in geologic times. Abrupt climate change, accompanied by environmental destruction from large volcanic eruptions and meteorites, has caused major mass extinctions throughout the Phanerozoic Eon, covering 539 million years to the present. To date […]

The Somalayas are the biggest mountain range you will never see

The Somalayas are the biggest mountain range you will never see

Geosciences

By Invited Researcher

Every geography schoolbook has them: maps that look like today’s Earth, but not quite, since all continents are merged into a single supercontinent. Those maps were used to explain why dinosaurs in South America and Africa, or North America and Europe looked so alike. “Paleogeographic” reconstructions like these provide context to study the processes that […]

Pluto: ‘recent’ volcanism raises puzzle – how can such a cold body power eruptions?

Pluto: ‘recent’ volcanism raises puzzle – how can such a cold body power eruptions?

AstronomyGeosciencesPlanetary Science

By Invited Researcher

Pluto, the Solar System’s largest dwarf planet, just became even more interesting with a report that icy lava flows have recently covered substantial tracts of its surface. In this context, “recently” means probably no more than a billion years ago. That’s old, of course – and there is no suggestion that volcanoes are still active […]

A forgotten mangrove forest around remote inland lagoons in Mexico’s Yucatan tells a story of rising seas

A forgotten mangrove forest around remote inland lagoons in Mexico’s Yucatan tells a story of rising seas

BiologyEcologyGeosciencesPlant biology

By Invited Researcher

The San Pedro River winds from rainforests in Guatemala through the Yucatan Peninsula in eastern Mexico. There, this peaceful river widens into a series of slow-flowing lakes. Along a remote 50-mile (80-kilometer) stretch, thousands of red mangroves – trees commonly found along tropical coastlines – line the river’s banks and gentle waterfalls. Unlike mangroves elsewhere […]

An ocean like no other: the Southern Ocean’s ecological richness and significance for global climate

An ocean like no other: the Southern Ocean’s ecological richness and significance for global climate

BiologyGeosciences

By Invited Researcher

Authors: Ceridwen Fraser, Associate professor, University of Otago; Christina Hulbe, Professor and Dean of the School of Surveying (glaciology specialisation), University of Otago; Craig Stevens, Associate Professor in Ocean Physics, National Institute of Water and Atmospheric Research, and Huw Griffiths, Marine Biogeographer, British Antarctic Survey In 2018, a map named after an oceanographer went viral […]