Columbia University

Researchers Shed Light on Birth of the First Stars

(PhysOrg.com) -- In the beginning, there were hydrogen and helium. Created in the first three minutes after the Big Bang, these elements gave rise to all other elements in the universe. The factories that ...

Jul 01, 2010
4.7 / 5 (14) 4 | with audio podcast

Tropical plankton invade Arctic waters

For the first time, scientists have identified tropical and subtropical species of marine protozoa living in the Arctic Ocean. Apparently, they traveled thousands of miles on Atlantic currents and ended up ...

Jul 24, 2012
4.7 / 5 (7) 7 | with audio podcast

Planning in the near term for climate change

When scientists talk about climate change, they usually mean significant changes in the measures of climate over several decades or longer. Climate variability generally refers to seasonal changes over a ...

Jun 27, 2013
2.5 / 5 (11) 0 | with audio podcast

Tree rings open door on 1100 years of El Nino

(PhysOrg.com) -- El Nino and La Nina, the periodic shifts in Pacific Ocean temperatures, affect weather around the globe, and many scientists have speculated that a warming planet will make those fluctuations ...

May 27, 2011
4 / 5 (13) 11 | with audio podcast

Can big earthquakes disrupt world weather?

(PhysOrg.com) -- The eruption of the Laki volcano in Iceland in 1783-84 set off a cascade of catastrophe, spewing sulfuric clouds into Europe and eventually around the world. Poisonous mists and a resulting ...

Apr 29, 2011
3 / 5 (2) 4 | with audio podcast

As Amazon urbanizes, rural fires burn unchecked

Many Amazonians are moving out of the countryside, in search of economic opportunities in newly booming Amazonian cities. The resulting depopulation of rural areas, along with spreading road networks and ...

Dec 10, 2012
4.3 / 5 (6) 3 | with audio podcast