News tagged with greenhouse gas concentrations

Warmest oceans ever recorded

"This summer has seen the highest global mean sea surface temperatures ever recorded since their systematic measuring started. Temperatures even exceed those of the record-breaking 1998 El Niño year," says ...

Nov 14, 2014
3.9 / 5 (74) 99

Pinpointing climate change uncertainty

The National Climate Assessment, released recently by the White House, describes a troubling array of climate woes currently affecting the United States—from intense droughts and heat waves to more extreme precipitation ...

Jun 09, 2014
2.9 / 5 (8) 2

Portable frequency comb rolls out of the lab

A PML team is hitting the road with a fine-tooth comb. Scientists in the Quantum Electronics and Photonics Division have devised a portable optical frequency comb that is capable of laboratory-grade measurements ...

Mar 21, 2014
5 / 5 (6) 0

Developing a new laser to detect methane leaks

(Phys.org) —University of Adelaide researchers are developing a new type of laser system that will monitor methane, the main component of natural gas, levels across large areas. This will provide a useful tool for monitoring ...

Jun 26, 2013
5 / 5 (4) 0 | with audio podcast