Back in the day where people are still skeptical with alternative energy because they were rare in the sense that people are frightened to try it because they think that they might have a hard time to service it if it breaks down and they are costly.
But, nowadays when the increasing levels of greenhouse gases are happening governments from different parts of the world as well as environmentalists are more open in using an alternative source of energy and not limiting themselves to fossil fuels only.
One factor is the lowered prices of alternative sources of energy and people have realized that it is an excellent investment to shift to those kinds of power that are carbonless.
In fact, in the United States the electric car Tesla Model S is one of the highest selling cars which is only showing that people are gradually finding their way to help the environment to reduce greenhouse gases by shifting to an alternative source of energy for a much cleaner and cheaper solution.
There is a forecasting study that in the year 2040 that forty percent of the global energy will be powered by solar and wind energy already and cars that will be roaming around the United States and Europe will be electric cars.
But it is still uncertain on how quick low-carbon economy will take form but what we know we are sure of is it is eventually happening and people are becoming more environment-conscious thanks to the mainstream media because of the people are now aware of global-warming which is just taken for granted in the earlier days.