Perhaps it's time to buckle down,
knuckle down,
rare back on your own two hind legs
and look at the
FACTS?
I looked it up
... so you didn't have to

Our current beneficial, warm Holocene interglacial has been the enabler of mankind’s civilisation for the last 10,000 years. The congenial climate of the Holocene epoch spans from mankind’s earliest farming to the scientific and technological advances of the last 100 years.

However all the Northern Hemisphere Ice Core records from Greenland show:

The last millennium 1000AD – 2000AD has been the coldest millennium of the entire Holocene interglacial.

Each of the notable high points in the Holocene temperature record, (Holocene Climate Optimum – Minoan – Roman – Medieval – Modern), have been progressively colder than the previous high point. for its first 7-8000 years the early Holocene, including its high point “climate optimum”, had virtually flat temperatures, an average drop of only ~0.007 °C per millennium.
but the more recent Holocene, since a “tipping point” at ~1000BC, has seen a temperature diminution at more than 20 times that earlier rate at about 0.14 °C per millennium.

The Holocene interglacial is already 10 – 11,000 years old and judging from the length of previous interglacials the Holocene epoch should be drawing to its close: in this century, the next century or this millennium. The beneficial warming at the end of the 20th century to the Modern high point has been transmuted into the “Great Man-made Global Warming Alarm”. Eventually this late 20th century temperature blip will come to be seen as just noise in the system in the longer term progress of comparatively rapid cooling over the last 3000+ years.

Other published Greenland Ice Core records as well as GISP2, (NGRIP1, GRIP) corroborate this finding. They also exhibit the same pattern of a prolonged relatively stable early Holocene period followed by a subsequent much more rapid decline in the more recent past. When considering the scale of temperature changes that alarmists anticipate because of Man-made Global Warming and their view of the disastrous effects of additional Man-made Carbon Dioxide emissions in this century, it is useful to look at climate change from a longer term, century by century and even on a millennial perspective.

The much vaunted and much feared “fatal” tipping point of +2°C would only bring Global temperatures close to the level of the very congenial climate of “the Roman warm period”.

If it were possible to reach the “horrendous” level of +4°C postulated by Warmists, that extreme level of warming would still only bring temperatures to about the level of the previous Eemian maximum, a warm and abundant epoch, when hippopotami thrived in the Rhine delta.

For a more comprehensive view of the decline of the Holocene see:

The Antarctic Vostok and EPICA ice core records, using the δ18Oxygen temperature assessment technique, show that there have been regular fluctuations at about 100,000 year intervals over the past 800,000 years there have been 5 probably warmer interglacial periods in the last 450,000 years interglacial periods have varied both in temperature intensity and duration.
On occasions some earlier interglacial periods were significantly shorter than the 10,000 year norm.

Catastrophic Global Warming alarmists postulate that temperature rise will reach the “potentially horrendous” level, (in their view), of +4°C by from the inclusion of major positive feedbacks from additional water vapor in the atmosphere. Even so the +4°C temperature level would still only bring global temperatures only up to about the level of the previous Eemian maximum.

The Eemian interglacial ~120,000 years ago, was a warm and very plentiful period in the world’s history: hippopotami thrived in the Rhine delta. As on-land ice sheets receded substantially in the Eemian, the resulting sea levels were about 3 meters higher than at present. But the ice sheet disintegration process to achieve that would have taken several millennia to have been fulfilled.

However according to the Alarmists all their radical and destructive consequences of temperature increases are supposed to occur over in this century 2000 – 2100AD. And according to them this “overheating catastrophe” will be solely attributable to Man-kind’s burning of fossil fuels and emission of extra Carbon Dioxide into the atmosphere.

Excess CO2 from burning fossil fuel was certainly not the cause of the much higher Eemian peak ~120,000 years ago.

But over the past ~20 years:

Man-made Co2 emissions have risen by ~14%
CO2 concentrations in the atmosphere have increased by almost ~8%
and there has been no perceptible increase in Global temperature.

Global Warming Alarmists including:

the Intergovernmental Panel on Climate Change
the United Nations
many Western Governments
Green NGOs, etc.
aggressively assert absolute catastrophe from excessive Man-made temperature rises.

It is extreme arrogance to expect that the actions of mankind could ever achieve a complete reversal of the world’s climatic cooling progress of the last 3000 years and in addition achieve a positive +4°C change over the course of the current century.

When the postulated warming in the coming century as promoted by the IPCC and other Global Warming alarmists is collated against the progress of actual Holocene temperatures, the absolute implausibility of the Man-made Global Warming hypothesis by adding comparatively marginal amounts of CO2 to the atmosphere becomes obvious.

Global warming protagonists should accept that our Holocene interglacial

has been in a long-term decline
that decline has accelerated over the last 3000 years and
that any action taken by Man-kind is unlikely to make any difference whatsoever.
Were the actions by Man-kind able to avert any warming they would eventually just reinforce the catastrophic cooling that is bound to return very soon in geological time scales.

References