Scientists expect trees will advance upslope as global temperatures increase, shifting the tree line—the mountain zone where trees become smaller and eventually stop growing—to higher elevations. But new research suggests this may not hold true for two subalpine tree species of western North America.
Scientists at Lawrence Berkeley National Laboratory documented a spring pulse in northern Alaska in 2014 that included CO2 emissions equivalent to 46 percent of the net CO2 that is absorbed in the summer months and methane emissions that added 6 percent to summer fluxes. What’s more, recent climate trends may make such emissions more frequent, the scientists conclude.
A set of new laser systems and proposed upgrades at Berkeley Lab’s BELLA Center will propel long-term plans for a more compact and affordable ultrahigh-energy particle collider.
Motivated by public hazards associated with contaminated sources of drinking water, a team of scientists has successfully developed and tested tiny, glowing crystals that can detect and trap heavy-metal toxins like mercury and lead.
Scientists from Berkeley Lab and PNNL have found that genes and early environment play big roles in shaping the gut microbiome. The microbes retained a clear “signature” formed where the mice were first raised, and the characteristics carried over to the next generation. The findings could potentially be used to develop designer diets optimized to an individual’s microbiome.
A combination of experiments, including X-ray studies at Berkeley Lab, revealed new details about pesky deposits that can stop chemical reactions vital to fuel production and other processes.