You know the skin-crawling, hair-raising feeling right before you drift off to sleep? It might not be “all in your head”.Bed bugs are on the rise, and travelers are unknowingly shuttling them across the oceans. Researchers wanted to know exactly how bed bugs were making long journeys at an unprecedented rate. They found bed bugs are attracted to dirty laundry, not just old mattresses. As international travel increases, bed bugs are jumping into suitcases and spreading across the globe.
Despite a decline in active mercury pollution, lingering environmental mercury is still a human health concern. Scientists working to track the movement of global mercury have discovered a new route – mercury moves through the stocking of lakes for recreational fishing. Because of fish stocking, the toxic heavy metal is moving from oceans to mountain lakes at an estimated global rate of one ton per year. This finding calls for fisheries managers to pay closer attention to the health of their recreational stock before releasing into lakes.
Antibiotics emitted from pharmaceutical plants have been known to contribute to water pollution in some regions of the world. New research reveals that biological communities downstream of plants change as a result of such exposure. This finding supports growing evidence that antibiotics can change the makeup of rivers and streams.
A recent study shows that pre-Columbian Amazonian societies played a key role in the structure of current tree communities. The results refute the idea of the Amazonia as an unspoiled place and highlights the contribution of ancient societies to the shaping of the current forest composition.
Rising sea levels and melting glaciers are certainly worrisome consequences of climate change — but there are more subtle changes that could also be disastrous. The geographical shift of caterpillar fungus, for example, could spell economic disaster for Tibetan people.
A mathematical model has been constructed to analyze the effect of Beijing’s odd-and-even license plate rule. The results concur with previous studies: it works somewhat in the short-term, but inadequate in the long run.
Why are people so stubborn in their beliefs? Why do people, when confronted with someone who disagrees with them, so often double-down in their arguments? A Yale scientist may have some answers — with surprising findings on who are the worst culprits.
More than 83 percent of chemicals have no safety information. Most businesses don’t design them for safety, and the government doesn’t test most of them for safety. Yet thousands of chemicals are in our water and soil, potentially causing human harm and costing billions to cleanup. How can we tell if new chemicals will cause damage to humans before they are made?