I lived through the threat of so-called "nuclear winter," which never materialize; then "global warming" which also never materialized; and now the non-debatable name called "climate change."  Of course climates change - winter, spring, summer and fall.  Those of  you who believe this garbage, go ahead and buy whatever devices you think will help stop this thing you are so scared of and, stop trying to get government to force me and all the other thinking people to change our lifestyles to a lower standard.