What is the motivation behind denying climate change?

if you do some searching, you will see that scientists were warning us in the 1970's that we were entering a mini-ice age and the concern was that a big chunk of the US would become perma frost and that would be a disaster because we couldn't grow crops.

Some scientists were warning of an impending ice age. Their evidence was pretty scant, and their references few. Source Warming in response to CO2 emissions has been postulated since Arrhenius 1897.

One thing that is clear is that no matter how many people say it, the science is not settled.

Some basic facts are, in fact, backed by substantial empirical evidence, and the consensus on those facts is robust.

We know for a fact that global warming data has been manipulated to show upward trends

Anyone who's been paying any attention recently understands fully that this is not true in any way, shape, or form.

leading researchers have destroyed emails and other evidence that tends to disprove their theories and that the alarmists are just plain wrong

Do you have evidence of fraud? If not (I suspect you don't), you may want to consider the fact that eight different national and supra-national bodies cleared every participant of everything more serious than basic obstinance.

Al Gore predicted that the polar ice caps would melt within 5 years

In a movie. And his "work" was never actually cited as credible by actual scientists who collect actual evidence.

Didn't happen and it isn't close to happening

You sure about that?

the motivations behind the climate change alarmism is two fold: (a) money and (b) control

Don't act like that road doesn't go both ways. In fact, one side of this equation has proven itself remarkably adept at generating fear and doubt. And if you're curious as to who this is, I'll give you a hint: They're not scientists in lab coats.

green environmental companies who support the Obama administration have been given hundreds of millions of dollars in government contracts to develop solar cells and solar energy

What are you comparing that against? Not-so-green companies who don't support the Obama administration get...oh I don't know...some $690ish billion in government contracts and loans. The fact that they receive money proves nothing, unless you have evidence of collusion (I suspect you don't).

The other half of this is that the global warming scare is being used to control the population, force people to spend more money and as an excuse to monitor people, either by private companies or the government.

Evidence? Or /r/conspiracy?

US coal industry is being heavily regulated by the Obama administration and that has caused energy rates to skyrocket

Wow. Aaand I just read the end of your comment. This is conspiracy rubbish, and anyone who worries that smart meters are being used to monitor people's activities is not welcome here. Take your nonsense elsewhere.

/r/GlobalWarming Thread