ScienceDaily: Top Environment News |
- New species of mayfly discovered in India
- Dinosaurs fell victim to perfect storm of events, study shows
- Climate change and air pollution will combine to curb food supplies
- New, noncommittal mechanism of drug resistance discovered
- Fighting bacteria -- with viruses
- Noise pollution impacts fish species differently
- New way to determine cancer risk of chemicals found
- Invertebrate numbers nearly halve as human population doubles
- Farmers market vouchers may boost produce consumption in low-income families
- Zika virus: New threat from tiger mosquito
- Western Indian Ocean communities play vital role in conservation
- Strengthening community forest rights is critical tool to fight climate change
| New species of mayfly discovered in India Posted: 28 Jul 2014 05:05 AM PDT Scientists have discovered a new species of mayfly in the southern Western Ghats, a mountain range along the west coast of India. The larvae have light-brown heads with light-yellow antennae, and they grow to be about 4-5 millimeters in length. Adults are also about five millimeters long, and the males and females both lack hind wings.       |
| Dinosaurs fell victim to perfect storm of events, study shows Posted: 28 Jul 2014 05:05 AM PDT Dinosaurs might have survived the asteroid strike that wiped them out if it had taken place slightly earlier or later in history, scientists say. They found that in the few million years before a 10km-wide asteroid struck what is now Mexico, Earth was experiencing environmental upheaval. This included extensive volcanic activity, changing sea levels and varying temperatures. At this time, the dinosaurs' food chain was weakened by a lack of diversity among the large plant-eating dinosaurs on which others preyed.  |
| Climate change and air pollution will combine to curb food supplies Posted: 27 Jul 2014 01:57 PM PDT Many studies have shown the potential for global climate change to cut food supplies. But these studies have, for the most part, ignored the interactions between increasing temperature and air pollution -- specifically ozone pollution, which is known to damage crops. A new study shows that these interactions can be quite significant, suggesting that policymakers need to take both warming and air pollution into account in addressing food security.  |
| New, noncommittal mechanism of drug resistance discovered Posted: 27 Jul 2014 01:57 PM PDT Microorganisms like bacteria and fungi can evade treatment by acquiring mutations in the genes targeted by antibiotics or antifungal drugs. These permanent mutations were once thought to be the only way for drug resistant strains to evolve. Now a new study has shown that microorganisms can use a temporary silencing of drug targets -- known as epimutations -- to gain the benefits of drug resistance without the commitment.  |
| Fighting bacteria -- with viruses Posted: 24 Jul 2014 11:42 AM PDT Research reveals how viruses called bacteriophages destroy the bacterium Clostridium difficile, which is becoming a serious problem in hospitals and healthcare institutes, due to its resistance to antibiotics. The study could help bring about a new way of fighting this and other bacteria.  |
| Noise pollution impacts fish species differently Posted: 24 Jul 2014 11:16 AM PDT Acoustic disturbance has different effects on different species of fish, according to a new study that tested fish anti-predator behavior. The current study demonstrates species-specific differences in response to noise, potentially driven by a range of underlying behavioral and physiological mechanisms.  |
| New way to determine cancer risk of chemicals found Posted: 24 Jul 2014 11:16 AM PDT It is possible to predict long-term cancer risk from a chemical exposure by measuring the short-term effects of that same exposure, new research has found. The findings will make it possible to develop simpler and cheaper tests to screen chemicals for their potential cancer causing risk.  |
| Invertebrate numbers nearly halve as human population doubles Posted: 24 Jul 2014 11:16 AM PDT Invertebrate numbers have decreased by 45 percent on average over a 35 year period in which the human population doubled, reports a study on the impact of humans on declining animal numbers. This decline matters because of the enormous benefits invertebrates such as insects, spiders, crustaceans, slugs and worms bring to our day-to-day lives, including pollination and pest control for crops, decomposition for nutrient cycling, water filtration and human health.  |
| Farmers market vouchers may boost produce consumption in low-income families Posted: 24 Jul 2014 11:14 AM PDT Vouchers to buy fresh fruits and vegetables at farmers markets increase the amount of produce in the diets of some families on food assistance, according to research. "In terms of healthy food options, farmers market incentives may be able to bring a low-income person onto the same playing field as those with greater means," said the study's lead author.  |
| Zika virus: New threat from tiger mosquito Posted: 24 Jul 2014 10:24 AM PDT In the group of viruses that includes dengue and chikungunya, a newcomer now has people talking about it. Also originating in Africa, zika was isolated in humans in the 1970s. Several years earlier, only a few human cases had been reported. It took until 2007 for the virus to show its epidemic capacity, with 5,000 cases in Micronesia in the Pacific, and then especially, at the end of 2013 in Polynesia, where 55,000 people were affected.  |
| Western Indian Ocean communities play vital role in conservation Posted: 24 Jul 2014 06:40 AM PDT Researchers have carried out the first assessment of community-led marine conservation in the Western Indian Ocean. The results point to a revolution in the management of marine protected areas, with almost half of the sites – more than 11,000 km² – in the region now under local community stewardship.  |
| Strengthening community forest rights is critical tool to fight climate change Posted: 24 Jul 2014 06:33 AM PDT Strengthening community forest rights is an essential strategy to reduce billions of tons of carbon emissions, making it an effective way for governments to meet climate goals, safeguard forests and protect the livelihoods of their citizens, according to a major new report.  |
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