Carbon nanotubes worth their salt

LLNL scientists have developed carbon nanotube pores that can exclude salt from seawater.

New study shows climate models over-predict climate change related precipitation increase

 Lawrence Livermore researchers and collaborators have found that most climate models overestimate the increase in global precipitation due to climate change.Specifically, the team looked at 25 models and found they underestimate the increase in absorption of sunlight by water vapor as the atmosphere becomes moister, and therefore overestimate increases in global precipitation.The team found global precipitation increase per degree of global warming at the end of the 21st century may be about 40 percent smaller than what the models, on average, currently predict. 

Global Warming “hiatus” connected to volcanic eruptions

The “warming hiatus” that has occurred over the last 15 years has been caused in part by small volcanic eruptions. Scientists have long known that volcanoes cool the atmosphere because of the sulfur dioxide that is expelled during eruptions. Droplets of sulfuric acid that form when the gas combines with oxygen in the upper atmosphere can persist for many months, reflecting sunlight away from Earth and lowering temperatures at the surface and in the lower atmosphere. Previous research suggested that early 21st-century eruptions might explain up to a third of the recent warming hiatus.