Our planet is poised at the brink of a severe environmental crisis. Current environmental problems make us vulnerable to disasters and tragedies, now and in the future. We are in a state of planetary emergency, with environmental problems piling up high around us.
chimney pot. n. A short, usually earthenware pipe placed on the top of a chimney to improve the draft. chimâ²ney pot`. n. an earthenware or metal pipe atop a chimney, esp. to increase the draft and disperse smoke. [1820â30] Translations.
Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the combustion in what is known as the stack, or chimney, effect. The space inside a chimney is called a flue.