> This slowing speeds up the rotation of the solid earth, so a day now is 0.0025 seconds shorter than it was 50 years ago. (...) Including all the causes of cha

> This slowing speeds up the rotation of the solid earth, so a day now is 0.0025 seconds shorter than it was 50 years ago. (...) Including all the causes of changes, Agnew suggests that a negative leap second might be needed some time in 2028. What a conclusion!