Nuclear winter causes and effects could trigger global cooling, crop failure, and mass extinction. Understand risks, climate impact, and survival strategies.

In the past couple of decades, several species have been driven to extinction thanks, in large part, to human interference. Sometimes that interference is direct, poaching for big game trophies or ...

As out-of-control heat cooks our planet, shattering temperature records for the last 13 consecutive months, it melts polar ice and raises sea levels. Most people are familiar with how this works, but ...

Debates over responsibility for past species loss generate heat but little light. Moving forward requires context, evidence ...

Mass extinctions, volcanism, and impacts: The geological extinction record : history, data, biases, and testing / Norman MacLeod -- Large igneous provinces and mass extinctions : an update / David P.G ...

Prehistoric humans hunt a woolly mammoth. More and more research shows that this species – and at least 46 other species of megaherbivores – were driven to extinction by humans. The debate has raged ...

Scientists have debated how many mass extinction events in Earth’s history were triggered by a space body crashing into the planet’s surface. Most agree that an asteroid collision 65 million years ago ...

Two hundred and fifty million years ago, ninety percent of marine species disappeared and life on land suffered greatly during the world’s largest mass extinction. The cause of this great dying has ...