Tag Archives: extinction

Rare space radiation disasters may lead to extinction events – just how deadly is a two-month ozone hole?

Both supernovae and extreme solar flares can damage Earth’s ozone layer. But perhaps a black hole swallowing a neutron star somewhere not too far away gives a bigger punch – lasting a second or so.

Reefs took 1.5 million years to reappear after Permian-Triassic Mass Extinction

The Permian-Triassic Mass Extinction was the largest in our planet’s history. Enormous disruptions of the carbon cycle led to climate change, ocean acidification and ocean anoxia – and with an estimated 90 percent of all species dying out Earth almost … Continue reading →

Early warning system for coral reef collapse found

Global warming, overfishing and ocean acidification form a major threat to ocean ecosystems, possibly even leading to an oceanic Holocene mass extinction. We might even have to say goodbye to the planet’s last coral reef by 2050 if we’re not … Continue reading →

Biodiversity feedback: loss of amphibian species further increases threat of deadly fungus infections

Worldwide amphibians are the most threatened class in the animal kingdom. In recent years Batrachochytrium dendrobatidis, a fungal pathogen, has caused havoc among many species of frogs, toads and salamanders, decreasing populations and wiping out others.

Dinosaurs not struck by Baptistina asteroid – search on for other cause C-T extinction

We’re now one hypothesis down and know one thing more: tens of millions of years ago there was an enormous piece of floating rock that did not cause the dinosaurs to die out at the Cretaceous-Tertiary boundary, NASA scientists say.

Nature: climate change leads to 67-84 percent intraspecific biodiversity loss by 2080 – Holocene Mass Extinction within this century

The better we define the richness of life on Earth, the larger the percentage we are going to lose becomes. Life won’t go extinct. The number of domains and kingdoms will very-very likely remain the same. But as we go … Continue reading →

Permian-Triassic mass extinction: 11,000 Gt CO2 worth of climate change led to microbial plagues that killed the world’s forests

New research shows an example of a missing link between climatic disruptions and biodiversity decline: killer microbes.

Triassic-Jurassic mass extinction caused by >16,000 Gt methane – from clathrates

Scientists of Utrecht University have investigated fossil leaves found in terrestrial late Triassic sediments and discovered a large carbon-13 depletion. That means 200,000,000 years ago The Methane Bomb went off.