How aerosols affect our climate

For many, the word "aerosol" might conjure thoughts of hairspray or spray paint. More accurately, though, aerosols are simply particles found in the atmosphere. They can be human-made, like from car exhaust or biomass burning, ...

New device for symmetry-breaking-induced optical nonlinearity

Second-order nonlinear optical processes play a pivotal role in both classical and quantum applications, ranging from extension of the accessible frequencies to generation of quantum entangled photon pairs and squeezed states. ...

Without ozone, the Earth might get a lot colder

The evolution of Earth's climate contains many components. And new research has shown just how critical the ozone layer is to the surface temperature of the Earth. Without an ozone layer, our planet would be 3.5 Kelvin cooler.

Researchers are finding ways to turn down the heat in cities

Rooftop gardens and greenery can help ease some of the severe heat in cities, according to research from climate scientists at NASA's Goddard Institute for Space Studies (GISS) in New York. For several decades, researchers ...

Why is the Earth blue?

Seen from space, the Earth is blue. The Earth has been blue for over 4 billion years because of the liquid water on its surface. How has the Earth managed to sustain liquid water on its surface for such a long time?

page 5 from 11