Climate ... something

Well, isn't this fun?  For anyone who's been around for any length of time, we know that topic of our environmental status has been debated, changed, manipulated, and lied about for decades.

First in my lifetime was a looming ice age. (More on that later.) Then, a mere 20 or so years later, it was Global Warming.  When a 7-year trend of cooling occurred, though, the narrative had to be changed.  So, the never-wrong phrase of "Climate Change" became the mantra.

What does that mean? And why is it a bad thing?