COLLEGE PARK, Md. – Across North America, streams and rivers are becoming saltier, thanks to road deicers, fertilizers and other salty compounds that humans indirectly release into waterways. At the same time, freshwater supplies are also becoming more alkaline. (more…)
A new technique that allowed researchers to analyze genetic material from serum samples of HIV patients taken before AIDS was known provides a glimpse into the beginnings of the epidemic.
Researchers at the University of Arizona and the University of Cambridge in the U.K. have reconstructed the origins of the AIDS pandemic in unprecedented detail. (more…)
A new study links climate change to the decline of bumblebee species in North America and Europe.
The study, published in the journal Science, found that bumblebee ranges are shrinking in the south and the insects are not moving north. In addition, some species are moving to higher elevations on both continents. (more…)
This new process developed by UCLA researchers could also lower production costs
Researchers at the UCLA Henry Samueli School of Engineering and Applied Science have developed a more efficient way to turn methanol into useful chemicals, such as liquid fuels, and that would also reduce carbon dioxide emissions. (more…)
ANN ARBOR — A new paper from scientists in North America, Europe and China reveals important details about key transitions in the evolution of plant life on our planet.
From strange and exotic algae, mosses, ferns, trees and flowers growing deep in steamy rain forests to the grains and vegetables we eat and the ornamental plants adorning our homes, all plant life on Earth shares more than a billion years of history. (more…)
AUSTIN, Texas — In findings of relevance to conservationists and the fishing industry, new research links short-term reductions in growth and reproduction of marine animals off the California coast to increasing variability in the strength of coastal upwelling currents — currents that supply nutrients to the region’s diverse ecosystem. (more…)
ANN ARBOR — On opposite sides of the globe over millions of years, the snakes of North America and Australia independently evolved similar body types that helped them move and capture prey more efficiently.
Snakes on both continents include stout-bodied, highly camouflaged ambush predators, such as rattlesnakes in North America and death adders in Australia. There are slender, fast-moving foragers on both continents, as well as small burrowing snakes. (more…)
LONG BEACH, Calif.—Scientists working together on Kelp Watch 2014 announced today that the West Coast shoreline shows no signs of ocean-borne radiation from Japan’s Fukushima nuclear power plant disaster, following their analysis of the first collection of kelp samples along the western U.S. coastline.
Kelp Watch 2014 is a project that uses coastal kelp beds as detectors of radioactive seawater arriving from Fukushima via the North Pacific Current. It is a collaborative effort led by Steven Manley, marine biology professor at California State University, Long Beach (CSULB), and Kai Vetter, head of applied nuclear physics at the Lawrence Berkeley National Laboratory (Berkeley Lab) and a nuclear engineering professor at the University of California, Berkeley. (more…)
