Posts tagged with "climate change"

snowpack

Study on impact of climate change on snowpack

Apr. 18, 2017 -  
An international team of scientists, including one from Lawrence Livermore National Laboratory (LLNL), has found that up to 20 percent loss in the annual maximum amount of water contained in the Western United States' mountain snowpack in the last three decades is due to human influence. Peak...
clouds

Cloudy feedback on global warming

Oct. 31, 2016 -  
Lawrence Livermore National Laboratory researchers have identified a mechanism that causes low clouds -- and their influence on Earth's energy balance -- to respond differently to global warming, depending on their spatial pattern and location. The results imply that studies relying solely on...
clouds

Scientists find evidence for climate change in satellite cloud record

Jul. 11, 2016 -  
Scientists have found that changes in cloud patterns during the last three decades match those predicted by climate model simulations. These cloud changes are likely to have had a warming effect on the planet. Records of cloudiness from satellites originally designed to monitor weather are plagued...

Climate models underestimate global warming by exaggerating cloud 'brightening'

Apr. 7, 2016 -  
Researchers at Lawrence Livermore National Laboratory and Yale University have found that climate models are aggressively making clouds "brighter" as the planet warms. This may be causing models to underestimate how much global warming will occur due to increasing carbon dioxide. The research...
glacier

Consequences of today's carbon emissions will linger for thousands of years, study finds

Feb. 8, 2016 -  
The Earth may suffer irreversible damage that could last tens of thousands of years because of the rate humans are emitting carbon into the atmosphere. In a new study in Nature Climate Change , researchers at Oregon State University , Lawrence Livermore National Laboratory and collaborating...
rain

Climate models overestimate rainfall increases

Dec. 10, 2015 -  
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...
atoms

It’s solid: storing hydrogen in a new form

Oct. 8, 2015 -  
As part of a tri-lab consortium, Lawrence Livermore National Laboratory researchers will develop tools and understanding necessary for designing new solid-state materials for storing hydrogen gas. Storage of hydrogen onboard vehicles is one of the critical enabling technologies for hydrogen-fueled...
soil

Soil organic matter vulnerable to climate change

Mar. 31, 2015 -  
Soil organic matter, long thought to be a semi-permanent storehouse for ancient carbon, may be much more vulnerable to climate change than previously thought. Plants direct between 40 percent and 60 percent of photosynthetically fixed carbon to their roots and much of this carbon is secreted and...
Science on Saturday

‘Science On Saturday’ to explore groundwater and the impacts of drought and climate change

Feb. 18, 2015 -  
Who: Lawrence Livermore scientist Andy Thompson and Tracy High School teacher Erin McKay will present "Hydrology of an 'Ant Farm'," a presentation examining the environmental impact of drought and climate change. What: This informative and entertaining lecture will touch on groundwater interactions...
cantona

Lawrence Livermore research finds early Mesoamericans affected by climate change

Jan. 27, 2015 -  
Scientists have reconstructed the past climate for the region around Cantona, a large fortified city in highland Mexico, and found the population drastically declined in the past, at least in part because of climate change. The research appears in the online edition of the Proceedings of the...