Yes liberal buzz words. It has been going on for over 50 years now.
Longer. The term 'climate change' really entered the scientific lexicon in the mid 1950s, although the concept of significant and long term changes to the global climate is at least a century older.
First it was global freezing...which never happened...
It wasn't. "Global freezing" was
never a consensus scientific view, and neither was global cooling. Even in the heyday of research on the topic - in the early to mid 1970s - the number of papers forecasting global warming outnumbered those forecasting global cooling by ~4:1.
then it was global warming, global flooding, cow farts or whatever and now the all inclusive catch phrase "climate change".
Global warming is multi-factoral and its outcomes manifold. It's telling that you're dismissing well established facts around climate change as "whatever". Very telling.
The problem is that the earth has gone through many extreme climate change cycles, proven by science, that has absolutely NOTHING to do with humans. Nothing.
Yes. So what? That was then, this is now.
The
current climate change were going through is substantially more than 90% the result of anthropogenic causes. Proven by science.
Climate researchers are wholly aware of past climate cycles. They're the ones who told us about them. And, because of that knowledge that's WHY they're so worried about the current climate change. The pace and extent of change that we're causing by warming the globe through the release of greenhouse gases
That in and of itself refutes you.
It really doesn't. And, if you knew what you were talking about, you wouldn't be saying that.
So every city IS a heat sink, but it is a local occurance and not global in any way.
And? The Urban Heat Island (UHI) effect is well known and researched. Climatologists have been modeling it since the 1960s. The IPCC report has included a dedicated UHI impacts section since (at least) 2001.
Does UHI account for oceanic warming? Does UHI account for atmospheric warming? Does UHI account for rural area land warming?
Even if we exclude cities and urban areas - which are warming about 25% faster than rural areas - the globe is still warming at somewhere around 0.16-0.175 degrees per decade.