Wind and solar are intermittent and unreliable methods for generating electricity that requires backup, usually with natural gas turbines, which increases costs. (ddears.com)
It is the least efficient and unreliable method when it comes to setting network fees in a mobile Bitcoin wallet. (coinstaker.com)
NOAA has now «decided that the sea dataset will have to be replaced and substantially revised just 18 months after it was issued, because it used unreliable methods which overstated the speed of warming,» The Daily Mail learned. (dailycaller.com)