Carbon monoxide is the number one cause of poisoning deaths in America. If you think it's just a winter problem associated with furnaces and heaters, and you think warmer weather signals the end of carbon monoxide danger, think again! Today you'll learn that warm weather is just as dangerous (and maybe even more so!) Here's why: besides the obvious hazards, like using a bar-b-q indoors or running a car in a closed garage, there are hidden dangers lurking in very unlikely places...for instance, boats. Carbon monoxide from engine and generator exhaust fumes collects under swim platforms, posing serious danger to both swimmers in the water and those on the rear deck. Carbon monoxide builds up both inside and outside all power boats, and 31 deaths have occurred in the last 10 years. Small gasoline-powered yard, lawn and garden tools require caution as well, as does the use of propane stoves, lanterns, and heaters used for camping. Still think carbon monoxide is just a winter thing? Think again!