US proposes stricter ozone limits

The US Environmental Protection Agency announced plans Wednesday to strengthen emission regulations for ozone, a smog-causing pollutant blamed for respiratory ailments affecting millions of Americans.

Nov 26, 2014
3.8 / 5 (4) 3

Biology trumps chemistry in open ocean

Single-cell phytoplankton in the ocean are responsible for roughly half of global oxygen production, despite vast tracts of the open ocean that are devoid of life-sustaining nutrients. While phytoplankton's ...

Nov 24, 2014
5 / 5 (7) 3

Knightscope K5 on security patrol roams campus

A Mountain View, California-based company called Knightscope designs and builds 5-feet, 300-pound security guards called K5, but anyone scanning last week's headlines has already heard about them, with the ...

Nov 24, 2014 weblog
4.6 / 5 (8) 3

Avoiding ecosystem collapse

From coral reefs to prairie grasslands, some of the world's most iconic habitats are susceptible to sudden collapse due to seemingly minor events. A classic example: the decimation of kelp forests when a ...

Nov 24, 2014
4.2 / 5 (5) 3

Protons fuel graphene prospects

Graphene, impermeable to all gases and liquids, can easily allow protons to pass through it, University of Manchester researchers have found.

Nov 26, 2014
5 / 5 (14) 0