The five biggest threats to human existence

In the daily hubbub of current "crises" facing humanity, we forget about the many generations we hope are yet to come. Not those who will live 200 years from now, but 1,000 or 10,000 years from now. I use the word "hope" ...

Life on Earth under 'existential threat': climate scientists

Climate change poses an "existential threat" to life on Earth, prominent scientists warned Tuesday, in an assessment on this year's avalanche of heat records and weather extremes that they said are hitting more ferociously ...

How close is too close to a kilonova?

Cataclysmic events happen in the universe all the time. Black hole mergers, supernovae, gamma-ray bursts, and a whole host of others. Most of them happen in distant galaxies, so they pose no threat to us. But there are a ...

In a parched land, Iraqi gazelles dying of hunger

Gazelles at an Iraqi wildlife reserve are dropping dead from hunger, making them the latest victims in a country where climate change is compounding hardships after years of war.

Climate change may have toppled Hittite Empire: study

Three years of extreme drought may have brought about the collapse of the mighty Hittite Empire around 1200 BC, researchers have said, linking the plight of the fallen civilization to the modern world's climate crisis.

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