Gasoline cars are worst by far (largely because of their heavy engines and transmissions) and hydrogen fuel-cell cars aren't much better. Note how very efficient trains and buses are, even though they use conventional technology. That's because they carry large numbers of people and, as thin...
Although women now travel more frequently and in greater numbers than in the past, men continue to move more freely (and to be paid more generously). This pattern results from social structures that continue to assume that women are solely responsible for domestic matters and child care. ...