A person with diabetes may have a dog that is trained to recognize and alert its owner to dangerous changes in blood sugar. (wideopenpets.com)
But they don't produce so much anxiety as the more dangerous changes that we can't opt out of. (legaltalknetwork.com)
A 2009 report published by the U.K.'s Royal Society argued that such drastic efforts could become important short - term tools for reversing dangerous changes to the climate. (sciencemag.org)