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.
If the chimney top is in a lower pressure area than the room with the fireplace, the air will draw steadily through the fireplace and chimney, because air in a high pressure zone will want to flow to a lower pressure zone. If the chimney top is in a higher pressure area than the room, the flow will tend into the room, bringing the smoke with it.