Below you'll find a list of all posts that have been tagged as “Parts-per notation”
The world is hurtling towards an era when global concentrations of carbon dioxide never again dip below the 400 parts per million (ppm) milestone, as two important measuring stations sit on the point of no return. The news comes as one important atmospheric measuring station at Cape Grim in Australia is poised on the verge of 400ppm for the first …
Greenhouse gases could tip the Earth – or at least a planet like Earth, orbiting a star very like the Sun – into a runaway greenhouse effect, according to new research. The new hothouse planet would become increasingly steamy, and then start to lose its oceans to interplanetary space. Over time, it would become completely dry, stay at a temperature …
An insect form of Alzheimer’s disease caused by aluminum contamination may be one of the causes behind an ongoing decline in populations of bees and other pollinators, according to a study conducted by researchers from the universities of Keele and Sussex and published in the journal PLOS ONE. The researchers found that honeybees had levels of aluminum in their bodies equivalent …
When it comes to mercury contamination of seafood, scientists and environmentalists ring the alarm, warning consumers that eating too much fish can expose the body to toxic amounts of mercury. When it comes to mercury in vaccines, however, it’s a much different story. Scientists often ignore the fact that children and adults are routinely injected with thimerosal, a mercury derivative …
