What are the environmental impacts of using coal-fired boilers?

Using coal-fired boilers has significant environmental impacts, particularly concerning greenhouse gas emissions. When coal is burned for energy, it releases a substantial amount of carbon dioxide, a primary greenhouse gas that contributes to global warming and climate change. This is a critical concern because, as the concentration of carbon dioxide in the atmosphere increases, it enhances the greenhouse effect, leading to rising global temperatures and associated environmental issues.

In addition to carbon dioxide, coal combustion also emits other harmful pollutants, including sulfur dioxide and nitrogen oxides, which can lead to acid rain and contribute to respiratory problems in humans and wildlife. The combination of these emissions underscores the detrimental environmental effects associated with the use of coal as an energy source.

The other options do not align with the reality of coal-fired boiler operations. For instance, the statement about lower carbon emissions is inaccurate because coal is one of the most carbon-intensive fuels. Likewise, options concerning reduced risk of air pollution and lower operational costs do not capture the broader environmental considerations and regulatory issues linked to coal usage, especially given the current global push toward reducing reliance on fossil fuels for cleaner energy alternatives.