The Global Climate Models (aka Computer Games) make wrong climate predictions because they are based on a wrong climate physics model (the unproven assumption that CO2 is the 'climate controller').
No one understands exactly what causes climate change, so developing an accurate climate physics model is an impossible task.
The causes of climate change probably include the sun, water vapor / clouds, oceans, “greenhouse gases”, surface albedo, soot in the air, and planet / sun geometry changes (long term).
I challenge any “climate scientist” to provide a more specific explanation of what causes climate change backed up by scientific proof.
Or just an explanation of what causes minor short term climate changes of a degree or two, over a century or two (ignoring major changes, such as the coming and going of the ice ages).
The Global Climate Models are a total waste of taxpayers' money — worthless computer games!
Most climate “scientists” on government payrolls are also wasting taxpayers' money.
The biggest waste of all is governments using unproven climate change theories and computer games to justify economic policies, including huge subsidies for left-wing favored "green" industries!
The climate in 2017 is more favorable for humans and green plants than it has been in at least 500 years.
There is no climate problem.
There has been no abnormal climate change in the past 150 years -- in fact the average temperature range has been only one degree C. (ignoring unknown margins of error -- probably large enough to offset the one degree C. warming estimated since 1880 ... or double it!)
There is no need to make wild guess predictions of the future climate, and then overreact to them.
Some smarmy people, however, have a need for more attention and power.
They know they can get attention and power by scaring ordinary people.
They scare ordinary people with the false claim that CO2 is an evil gas, and they must lead the effort to 'save the world'.
Unfortunately, there are a lot of gullible people (mainly leftists) who fully believe the scaremongers.
The goals of the climate scaremongers:
(1) Gain more political power,
(2) Tell people how to live,
(3) Take (false) credit for saving the Earth, and
(4) Make good money doing (1), (2) and (3).
The coming climate change catastrophe is a hoax ... because humans do not have the ability to predict the future climate.
The coming climate change catastrophe is also a scam ... because leftists have used a false threat to gain political power, and make money in the heavily subsidized "green" industry.