Hybrids and plug-ins are exempt, however.
According to The Guardian, Britain is following France's lead in its decision to ban all new gasoline and diesel vehicles beginning in 2040. The main reason given was due to fears that rising levels of nitrogen oxide pose a major risk to public health. However, there is an exception to this law: hybrids' and plug-in hybrids will not be included in the ban. "Poor air quality is the biggest environmental risk to public health in the UK and this government is determined to take strong action in the shortest time possible," stated a UK government spokesman.
The UK clearly wants to become an EV, hybrid, and plug-in hybrid only nation, but there's still a fairly long way to go to make that a reality. For example, Autocar notes that so far in 2017, only around 4 percent of all new car sales have been plug-in hybrids or EVs. To be fair, there aren't currently a lot of EVs to choose from, but that will change in the coming years. This latest gasoline-diesel ban is part of growing trend that, aside from France, previously saw major cities such as Athens, Madrid, and Mexico City moving to ban diesel vehicles from their city centers by as early as 2025. Germany, Norway and India are also currently working to craft legislation that will see the eventual ban of gasoline and diesel vehicles in the coming years.
Will the US follow? At some point, yes. It's simply the way transportation technology and global emissions law is going. However, taking into account the US's recent decision to pull out of the Paris Climate Agreement, there's a fairly good chance it'll take longer for the US to follow suit.