Why is oal even an chance anymore?

While taking a class on environmental conservation I was shocked to learn that some countries around the world still promote coal burning gas furnaces in homes.

For the life of myself and others I just don’t understand this.

Here in the US there are some homes that still use this for heat as well but those systems are filtered more than those found in countries such as China where the emissions from this style of fuel are just free in the air. Coal is still a viable chance as far as cost goes for many people but with all the health concerns acquaintanced with it, I am surprised that anyone would want to use it, however the toxic gases that are emitted when it burns are legitimately dangerous. In other countries where there are not organizations such as the EPA people are free to choose the style of fuel they want with no regard to what it is doing to their family or the surrounding environment; Even those who work in the coal mines think the dangers of breathing in the dust from the process. Why would anyone want to risk this in their own lake new home where they are raising a family? The class I was taking was entirely interesting and made myself and others know about how I was going to heat my own lake new home someday. I think, if possible, I will be using solar or geothermal energy to heat and cool my home. This will have the least amount of impact on my surrounding world and I assume that it is important after hearing the effects from other options.

Wireless thermostat