UN sounds warning on climate change health threat

Climate change poses a health threat through increasing weather disasters and extreme heat, the UN said Thursday, calling for better warning systems that could be weaved into public health policy.

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 ...

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