Posts tagged with "global warming"

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...
floats

Researcher sheds light on ocean observations

Feb. 24, 2016 -  
Oceanographer Paul Durack of the Laboratory's Program for Climate Modeling and Intercomparison (PCMDI) recently opined about the importance of ocean salinity observations and needed urgent attention for the ocean observing system in the journal, Nature Climate Change . The global water cycle --...
sea level

Livermore Lab scientists show salinity matters when it comes to sea level changes

Nov. 20, 2014 -  
LIVERMORE, California -- Using ocean observations and a large suite of climate models, Lawrence Livermore National Laboratory scientists have found that long-term salinity changes have a stronger influence on regional sea level changes than previously thought. "By using long-term observed estimates...

Volcanoes contribute to recent warming 'hiatus'

Feb. 23, 2014 -  
LIVERMORE, Calif. -- Volcanic eruptions in the early part of the 21st century have cooled the planet, according to a study led by Lawrence Livermore National Laboratory. This cooling partly offset the warming produced by greenhouse gases. Despite continuing increases in atmospheric levels of...

Current ice melt rate in Pine Island Glacier may go on for decades

Feb. 21, 2014 -  
A study of the Pine Island Glacier could provide insight into the patterns and duration of glacial melt. The Pine Island Glacier, a major outlet of the West Antarctic Ice Sheet, has been undergoing rapid melting and retreating for the past two decades. But new research by an international team...

Research shows humans are primary cause of global ocean warming over past 50 years

Jun. 10, 2012 -  
LIVERMORE, Calif. -- The oceans have warmed in the past 50 years, but not by natural events alone. New research by a team of Lawrence Livermore National Laboratory scientists and international collaborators shows that the observed ocean warming over the last 50 years is consistent with climate...

Separating signal and noise in climate warming

Nov. 17, 2011 -  
LIVERMORE, Calif. -- In order to separate human-caused global warming from the "noise" of purely natural climate fluctuations, temperature records must be at least 17 years long, according to climate scientists. To address criticism of the reliability of thermometer records of surface warming,...