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Articles in 'Environment' (Page 2)
Biodiversity improves water quality in streams through a division of labour
— 9 Apr 2011 11:43Biologically diverse streams are better at cleaning up pollutants than less rich waterways, and Bradley Cardinale, an assistant professor at the U-M School of Natural Resources and Environment, says he has uncovered the long-sought mechanism that explains why this is so. Cardinale reports his findings in the 7 April edition of the journal Nature…
Climate change is making our environment 'bluer'
— 6 Apr 2011 18:49The 'colour' of our environment is becoming 'bluer,' a change that could have important implications for animals' risk of becoming extinct, ecologists have found. In a major study involving thousands of data points and published this week in the British Ecological Society's Journal of Animal Ecology, researchers examined how quickly or slowly animal populations and their environment change over time, something ecologists describe using 'spectral colour'…
Rare alpine insect may disappear with glaciers
— 6 Apr 2011 18:43Loss of glaciers and snowpack due to climate warming in alpine regions is putting pressure on a rare aquatic insect, the meltwater stonefly, according to a study recently released in Climatic Change Letters…
Climate change threatens global security, warn medical and military leaders
— 6 Apr 2011 18:25Medical and military leaders have come together today to warn that climate change not only spells a global health catastrophe, but also threatens global stability and security…
World's reef fishes tussling with human overpopulation
— 6 Apr 2011 17:46In an unprecedented collaborative analysis published in the journal PLoS Biology, scientists from 49 nations demonstrated that the ability of reef fish systems to produce goods and services to humanity increases rapidly with the number of species. However, growing human populations hamper the ability of reefs to function normally, and counterintuitively, the most diverse reef fish systems suffer the greatest impairments from stressors triggered by human populations. The study documented that the extent of this distress is widespread and likely to worsen because 75% of the world's reefs are near human settlements and because around 82% of the tropical countries with coral reefs could double their human populations within the next 50 to 100 years…
'Epidemiological' tree study shows impacts of climate change on forests
— 6 Apr 2011 17:43Tree growth and fecundity - the ability to produce viable seeds - are more sensitive to climate change than previously thought, according to an 18-year study of 27,000 individual trees by Duke University researchers…
Protein adaptation shows that life on early earth lived in a hot, acidic environment
— 6 Apr 2011 17:10A new study reveals that a group of ancient enzymes adapted to substantial changes in ocean temperature and acidity during the last four billion years, providing evidence that life on Early Earth evolved from a much hotter, more acidic environment to the cooler, less acidic global environment that exists today…
Addressing the nuclear waste issue
— 6 Apr 2011 16:01Researchers from Northwestern University and Argonne National Laboratory have an enhanced understanding of a common freshwater alga and its remarkable ability to remove strontium from water. Insight into this mechanism ultimately could help scientists design methods to remove radioactive strontium from existing nuclear waste…
First broad-scale maps of life on the sea-shelf
— 2 Apr 2011 11:22Marine scientists from five research agencies have pooled their skills and resources to compile a directory of life on Australia's continental shelf. They examined the shelf seascape during a three-year program of the Commonwealth Environment Research Facilities (CERF) Marine Biodiversity Hub…
Ants and termites boost dryland wheat yields
— 2 Apr 2011 11:19Ants and termites have a significant positive impact on crop yields in dryland agriculture, according to a paper published today in the journal Nature Communications by scientists at CSIRO and the University of Sydney…
Project seeks clues to climate change in remote atmospheric region
Creating a safe zone for endangered right whales