UFO sightings: Why Mount Shasta is the new Roswell

A volcano in California is a hot spot for conspiracy theorists.

Photo Credit: Shasta-Trinity National Forest.
  • Unusual UFO-shaped formations were observed in the skies over Mount Shasta.
  • These were actually lenticular clouds that often look like lenses or flying saucers.
  • This volcano peak in California has long been the subject of conspiracy theories.
Keep reading Show less

Permafrost is thawing so fast it’s gouging holes in the Arctic

Global warming has shown that permafrost is not so permanent after all.

Orjan F. Ellingvag/Dagens Naringsliv/Corbis via Getty Images

Residents of the small Alaskan town Kongiganak can no longer bury their dead. Their cemetery has become a marshy swamp, sucking graves into the once frozen ground.

Keep reading Show less

Tardigrades' kryptonite? Climate change.

Not so indestructible after all.

  • Tardigrades, also known as water bears, are microscopic creatures best known for their ability to withstand a variety of extreme conditions, such as high heat, extreme cold, high pressure, and even the vacuum of space.
  • However, new research shows that the famously durable creatures aren't so robust against the long-term heat of climate change.
  • The findings underscore how fundamentally humans have affected life at every level.
Keep reading Show less

What do people around the world think about climate change?

Global warming appears to be front of mind for people worldwide.

Marcos del Mazo/LightRocket via Getty Images

Climate change is reversible – that's the view of 80% of Chinese people, according to a report from the European Investment Bank (EIB).

Keep reading Show less

How long will a volcanic island live?

Plate tectonics and mantle plumes set the lifespan of volcanic islands like Hawaii and the Galapagos.

Phil Yeo/Getty Images

When a hot plume of rock rises through the Earth's mantle to puncture the overlying crust, it can create not only a volcanic ocean island, but also a swell in the ocean floor hundreds to thousands of kilometers long.

Keep reading Show less