Coffee: More biodiversity, better harvest

Bees, birds and bats make a huge contribution to the high yields produced by coffee farmers around Mount Kilimanjaro – an example of how biodiversity can pay off. This effect has been described as result of a study now ...

Video: The chemistry of redheads

St. Patrick's Day evokes thoughts of all things often associated with the Irish—including red hair. Chemically speaking, what sets redheads apart from the crowd is pigmentation—specifically melanins.

New frontier for scaling up online classes: credit

In 15 years of teaching, University of Pennsylvania classicist Peter Struck has guided perhaps a few hundred students annually in his classes on Greek and Roman mythology through the works of Homer, Sophocles, Aeschylus and ...

Optimum shade for cocoa

As chocolate becomes ever more popular, demand for cocoa keeps rising. For production to keep up, agricultural practices have to become more sustainable. ETH researchers tested what shade trees can contribute to solving this ...

Growing the tallest is not always the best option

Plants need sunlight to feed and grow. Without light, photosynthesis, the reaction by which the plant chloroplasts convert atmospheric CO2 and water into sugars and oxygen, cannot take place. In some situations, such as in ...

page 2 from 2