Some states may have created a way for heterosexual couples to avoid the marriage tax penalty, writes Howard Gleckman. How can domestic partnerships lead toward the federal marriage tax penalty?
The Diesel Technology Forum released data on which states had the strongest sales for diesel and hybrid vehicles. California had the most sales for diesel and hybrid cars, with 1.3 million new vehicles registered between 2010 and 2013.
Small-scale nuclear plants can be strung together and might save utilities on capital costs. But critics question the efficiency and operating costs of small-scale nuclear plants.
More details on the eight-state plan to promote the sale of more electric cars have been released. The goal is to have sold more than 3 million electric cars by 2025 in the US.