By Anthony Lane
Casper Star-Tribune (Wyoming)

While a bird nesting in a chimney flue might sound like a cozy arrangement for the summer, the blockage could be deadly when the fireplace below is used.

Carbon monoxide, produced when wood and fossil fuels burn, can start accumulating. Residents breathing the poisoned air might develop headaches and feel sick. Eventually, they might fall unconscious and even die.

Blockages and malfunctioning heating equipment are common reasons for problems with the gas that it often noted for being both colorless and odorless, according to Pat McJunkin, a Casper Fire-EMS spokesman.

Full Story