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The IPCC Keeps Contradicting Itself, Leaving Its Credibility In Tatters

by Andy Rowlands, guest post
March 30, 2023, 7:06 AM
in News and Opinion
Reading Time: 5 mins read
A A
2

independent headlineLast week, The Independent newspaper posted an article with the title ‘Window of opportunity to preserve liveable climate rapidly closing, says IPCC‘

I reproduce the article below and follow it with my own thoughts. [emphasis, links added]

It begins:

Extreme heat is already killing people around the world while increasing disease, displacement and loss of livelihood and culture, scientists say.

There is a rapidly closing window of opportunity to lower greenhouse gas (GHG) emissions and secure a safe and liveable future for the global population, according to a new UN report.

Scientists from the Intergovernmental Panel on Climate Change (IPCC) said there needs to be drastic and deep GHG emissions cuts to keep the average global temperature below 1.5C above pre-industrial levels.

Every fraction of warming escalates the severity of climate effects such as heatwaves, heavy rainfall and flooding, they said, while new evidence has shown even small changes can wreak havoc on communities.

Burning fossil fuels has already warmed the Earth by 1.1C, resulting in more frequent extreme weather and increased food and water scarcity for millions of people.

Human activities have unequivocally caused this warming, the report authors said, with current policies set to warm the Earth by a further 2C above pre-industrial temperatures by 2100.

This could cause catastrophic loss of life for species around the equator while exposing millions more people to dangerous levels of heat and humidity.

Global surface temperature has increased faster since 1970 than in any other 50-year period over the last 2,000 years and in 2019 atmospheric CO2 concentrations were higher than at any time in at least two million years, according to IPCC analysts.

Limiting the global temperature to 1.5C, above which scientists say the climate will become dangerously unstable, requires CO2 emissions to fall by 48 percent by 2030, 65 percent by 2035, 80 percent by 2040 and 99 percent by 2050.

IPCC author Professor Peter Thorne said: “The report is pretty clear that we will, almost regardless of emissions scenarios, reach 1.5C in the first half of the next decade.

“There is some uncertainty about that. The real question is whether our collective choices between now and then mean we reach and stabilise at or around 1.5C or whether we blast right through 1.5C, crash through 2C and keep going.”

Between 3.3-3.6 billion live in contexts highly vulnerable to climate change, the IPCC said, with those in the global south, small islands and the Arctic bearing the most harmful impacts.

Dr Aditi Mukherji, another of the 93 authors of the synthesis report, said: “Climate justice is crucial because those who have contributed least to climate change are being disproportionately affected. In the last decade, deaths from floods, droughts and storms were 15 times higher in highly vulnerable regions.”

In the UK, climate change brings more extreme rainfall and flooding as well as more extreme heat, drought and food insecurity.

Coastal communities face seas that will unavoidably rise for centuries or even millennia, the IPCC said, because of melting ice sheets and deep ocean warming.

The report, approved by UN member states after a week-long session in Interlaken, Switzerland, brings together the findings of three previous volumes on physical science, mitigation and adaptation as well as three special reports on global warming of 1.5C, the ocean and cryosphere and climate change and land.

It will be the last such report for several years and sets out the scientific basis for this decade’s global climate action.

The IPCC said choices and actions implemented throughout the 2020s will have impacts now and for thousands of years.

Dr Chris Jones, of the Met Office and an IPCC author, said: “Today’s report reveals the sheer scale of the ambition required to avoid the worst consequences of climate change. We know that climate change is already happening and the world has already witnessed extreme events associated with the relatively modest warming we have seen so far. In fact, the world now is the coolest it is going to be at least for many decades.”

Met Office analysis, published to coincide with the IPCC report, suggests slashing global GHG emissions in half by 2030 would only leave a 50 percent chance of limiting the global average temperature to 1.5C and said even bigger cuts are required to give more certainty.

The IPCC said some industries that are hard to decarbonise, such as agriculture, aviation and shipping, will need to be counterbalanced by removing CO2 from the atmosphere, while private finance is key to climate adaptation and mitigation.

Dr Christopher Trisos, one of the report’s authors, said: “The greatest gains in wellbeing could come from prioritising climate risk reduction for low-income and marginalised communities, including people living in informal settlements. Accelerated climate action will only come about if there is a manyfold increase in finance. Insufficient and misaligned finance is holding back progress.”

You can read the entire article in The Independent.

The IPCC seems to have high confidence the world will end unless we regress about 300 years, but has only low or medium confidence in individual instances like sea levels, storms, flooding, droughts, etc.

How they got from these low confidences to making statements like ‘the window of opportunity to preserve liveable climate rapidly closing’ baffles me.

That isn’t science, it’s political propaganda, especially when the available data not only clearly refute virtually every claim of impending doom, it shows that in a warmer world, as Tim Ball and Richard Lindzen have repeatedly said, you get LESS ‘extreme weather’, not more.

Yes, sea levels are rising. We are still recovering from the last Ice Age, so this is expected.

Yes, the average temperature is modestly increasing, and I for one am glad it is. Each of the four recent warm periods, e.g., the Medieval, Roman, Minoan, and Holocene were warmer than today, and each saw the flowering of those respective civilizations.

How can this be anything but a good thing?

Warmer climates are hugely beneficial, colder climates are where civilizations collapse, and populations suffer greatly as with the Little Ice Age.

All the previous warm periods had CO2 much lower than today, which is just more proof that CO2 does NOT drive temperature. If it did, those warm periods would never have happened.


Andy Rowlands is a university graduate in space science and British Principia Scientific International researcher, writer, and editor who co-edited the new climate science book, ‘The Sky Dragon Slayers: Victory Lap‘

Cross-posted from PSI

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Comments 2

  1. Spurwing Plover says:
    3 years ago

    Time has come to totally defund the IPCC and the UN and moved the whole lot to Moscow

    Reply
  2. Tom says:
    3 years ago

    The brain dead leftists do not realize that progressing back 200-300 years will destroy their all- digital-prison they want for humanity.

    Reply

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